ÁLGEBRA MODERNA I
Seja E= {1, 2, 3}. Considerem as relações em E:
R1={ (1, 1); (2,2); (3, 3)}.
R2= {(1, 1); (1, 2); (1, 3); (2, 2); (2, 3); (3, 3)}.
R3={ (1, 2); (1, 3); (2, 1); (2, 3); (3, 1); (3, 2); (3, 3)}.
R4= E x E
R5={ (1, 1); (1, 3); (2, 2); (2, 3); (3, 1); (3, 2)}.
Quais são as relações que podem ser consideradas relações de equivalência?
R2, R3 e R5.
R4 e R5.
R1 e R4.
R2 e R3.
R3 e R4.
As relações binárias são basicamente relações entre os elementos de dois conjuntos que seguem uma propriedade. Para entendermos completamente esse conceito precisamos nos familiarizar rapidamente com o conceito de par ordenado, plano cartesiano e produto cartesiano.
Reflexiva: A relação R é dita reflexiva se todo elemento do domínio se relaciona com ele mesmo na imagem, ou seja, para todo a ∈ A, (a, a) ∈ R.
Simétrica: Dizemos que R é simétrica se dado que (a, b) se R há a implicação que (b, a) ∈ R.
Transitiva: Se (a, b), (b, c) ∈ R ⇒ (a,c) ∈ R dizemos que R é transitiva.
Agora verifique as relações a seguir e assinale a alternativa correta, tendo como R= {a, b, c ,d}:
R1={(a, b), (a, d), (b, b), (b, a), (c, a), (c,b)}
R2= {(a, a), (a,b), (b, a), (c, d), (d, c)}
R3= {(a, a), (a,b), (b, b), (b,c), (b,d), (c, c), (d, d)}.
R1 possui apenas a propriedade transitiva, R2 possui apenas a propriedade simétrica e R3 possui apenas a propriedade reflexiva.
R2 possui apenas a propriedade transitiva, R1 possui apenas a propriedade simétrica e R3 possui apenas a propriedade reflexiva.
R2 possui apenas a propriedade transitiva, R3 possui apenas a propriedade simétrica e R1 possui apenas a propriedade reflexiva.
R3 possui apenas a propriedade transitiva, R2 possui apenas a propriedade simétrica e R1 possui apenas a propriedade reflexiva.
R1 possui apenas a propriedade transitiva, R2 possui apenas a propriedade simétrica e R3 possui as propriedades reflexiva e simétrica.
Dada a relação de IR em IR definida por x2 + y2 - 4x + 8y +16 = 0, teremos como resposta correta para determinar o domínio de R-1.
Domínio: todo x pertencente ao conjunto IR, compreendidos no intervalo de x maior-igual a 0 e x menor-igual a -4.
Domínio: todo x pertencente ao conjunto IR, compreendidos no intervalo de x maior-igual a 4 e x menor-igual a-2.
Domínio: todo x pertencente ao conjunto IR, compreendidos no intervalo de x maior-igual a -6 e x menor-igual a-2.
Domínio: todo x pertencente ao conjunto IR, compreendidos no intervalo de x maior-igual a 6 e x menor-igual a-2.
Domínio: todo x pertencente ao conjunto IR, compreendidos no intervalo de x maior-igual a 0 e x menor-igual a -2.
Seja C= IR e F= IR, sendo IR, o conjunto dos números reais e a relação dada por x= y+ 1, podemos afirmar que o domínio e a imagem dessa relação é:
o conjunto dos números inteiros, pois há pares ordenados positivos e negativos somente, que pertencem a essa relação.
o conjunto dos números reais, pois há infinitos pares ordenados que pertencem a essa relação.
o conjunto dos números naturais apenas, pois há somente pares ordenados positivos que pertencem a essa relação.
o conjunto dos números reais, pois há finitos pares ordenados que pertencem a essa relação.
o domínio é o conjunto dos números reais e a imagem é o conjunto dos números irracionais.
Seja R uma relação definida pelo par ordenado (x, y), tal que x pertença ao conjunto dos números reais, definida por: 4 x2 + 16 y2 = 64 (equação da elipse), podemos dizer que a imagem está compreendida nos intervalos de:
[- 4, 4]
[ 2, 0]
[ 0, 4]
[- 2, 4]
[- 2, 2]
Analise as afirmativas a seguir, classifique-as em verdadeiro (V) ou falso (F). Assinale a alternativa que corresponde à resposta correta.
( ) - Todo número inteiro é uma classe de equivalência formada por pares ordenados (a, b) e (c, d) de números naturais que obedecem a lei a + d = b + c.
( ) - O conjunto Z é, portanto, o conjunto quociente de (N X N) / R.
( ) - Os pares ordenados que se relacionam, isto é, que pertencem a diferentes classes de equivalência, estão sobre uma mesma semirreta que tem origem nos eixos coordenados, dentro da definição de número inteiro como classe de equivalência.
( ) - Os pares ordenados que definem os números inteiros na relação de equivalência são do tipo
(n, 0) e (0, n).
V F F V
V V F V
V V V V
V V F F
F V F V
Para responder à questão observe as definições a seguir:
![](http://sga.uniube.br/images/uploads/14348/alg%20racionais.JPG)
Então, de acordo com as definições dadas, a alternativa que representa o resultado de (1/6) . (2/5), definidos na classe de equivalência é:
.
= ![(bar(1.5,6.2))](https://sga.uniube.br/tinyMCE3.4.4/cgi-bin/mimetex.cgi?%5Cdisplaystyle%7B%5Cleft(%7B%5Coverline%7B%7B%7B1.5%7D%2C%7B6.2%7D%7D%7D%7D%5Cright)%7D)
.
= ![(bar(-1.-5,-2.-6))](https://sga.uniube.br/tinyMCE3.4.4/cgi-bin/mimetex.cgi?%5Cdisplaystyle%7B%5Cleft(%7B%5Coverline%7B%7B-%7B1%7D.-%7B5%7D%2C-%7B2%7D.-%7B6%7D%7D%7D%7D%5Cright)%7D)
.
= ![(bar(1.6,2.5))](https://sga.uniube.br/tinyMCE3.4.4/cgi-bin/mimetex.cgi?%5Cdisplaystyle%7B%5Cleft(%7B%5Coverline%7B%7B%7B1.6%7D%2C%7B2.5%7D%7D%7D%7D%5Cright)%7D)
.
= ![(bar(-1.-2,6.5))](https://sga.uniube.br/tinyMCE3.4.4/cgi-bin/mimetex.cgi?%5Cdisplaystyle%7B%5Cleft(%7B%5Coverline%7B%7B-%7B1%7D.-%7B2%7D%2C%7B6.5%7D%7D%7D%7D%5Cright)%7D)
.
= ![(bar(1.2,6.5))](https://sga.uniube.br/tinyMCE3.4.4/cgi-bin/mimetex.cgi?%5Cdisplaystyle%7B%5Cleft(%7B%5Coverline%7B%7B%7B1.2%7D%2C%7B6.5%7D%7D%7D%7D%5Cright)%7D)
Para responder à questão observe as definições a seguir:
![](http://sga.uniube.br/images/uploads/14348/alg%20racionais.JPG)
Então, de acordo com as definições dadas, a alternativa que representa o resultado de (3/5) + (1/3), definidos na classe de equivalência é:
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Para responder à questão observe as definições a seguir:
Definição: todo número inteiro é uma classe de equivalência, formada por pares ordenados (a, b), (c, d) de números naturais que obedecem à lei a + d = b + c. O conjunto Z é, portanto, o conjunto quociente de (N x N)/R. Observe que o número inteiro passa a ser definido como uma diferença entre dois naturais.
Dados dois números inteiros definidos por suas classes de equivalência, temos:
![http://sga.uniube.br/images/uploads/14348/Alg%20mod%201.2.JPG](http://sga.uniube.br/images/uploads/14348/Alg%20mod%201.2.JPG)
Então, de acordo com as definições dadas, a alternativa que representa o resultado, por um par ordenado, de
( 4 ) - (- 2) . ( 3)+ (-3) . (5), definidos na classe de equivalência é:
R2, R3 e R5.
R4 e R5.
R1 e R4.
R2 e R3.
R3 e R4.
As relações binárias são basicamente relações entre os elementos de dois conjuntos que seguem uma propriedade. Para entendermos completamente esse conceito precisamos nos familiarizar rapidamente com o conceito de par ordenado, plano cartesiano e produto cartesiano.
Reflexiva: A relação R é dita reflexiva se todo elemento do domínio se relaciona com ele mesmo na imagem, ou seja, para todo a ∈ A, (a, a) ∈ R.
Simétrica: Dizemos que R é simétrica se dado que (a, b) se R há a implicação que (b, a) ∈ R.
Transitiva: Se (a, b), (b, c) ∈ R ⇒ (a,c) ∈ R dizemos que R é transitiva.
Agora verifique as relações a seguir e assinale a alternativa correta, tendo como R= {a, b, c ,d}:
R1={(a, b), (a, d), (b, b), (b, a), (c, a), (c,b)}
R2= {(a, a), (a,b), (b, a), (c, d), (d, c)}
R3= {(a, a), (a,b), (b, b), (b,c), (b,d), (c, c), (d, d)}.
R1 possui apenas a propriedade transitiva, R2 possui apenas a propriedade simétrica e R3 possui apenas a propriedade reflexiva.
R2 possui apenas a propriedade transitiva, R1 possui apenas a propriedade simétrica e R3 possui apenas a propriedade reflexiva.
R2 possui apenas a propriedade transitiva, R3 possui apenas a propriedade simétrica e R1 possui apenas a propriedade reflexiva.
R3 possui apenas a propriedade transitiva, R2 possui apenas a propriedade simétrica e R1 possui apenas a propriedade reflexiva.
R1 possui apenas a propriedade transitiva, R2 possui apenas a propriedade simétrica e R3 possui as propriedades reflexiva e simétrica.
Dada a relação de IR em IR definida por x2 + y2 - 4x + 8y +16 = 0, teremos como resposta correta para determinar o domínio de R-1.
Domínio: todo x pertencente ao conjunto IR, compreendidos no intervalo de x maior-igual a 0 e x menor-igual a -4.
Domínio: todo x pertencente ao conjunto IR, compreendidos no intervalo de x maior-igual a 4 e x menor-igual a-2.
Domínio: todo x pertencente ao conjunto IR, compreendidos no intervalo de x maior-igual a -6 e x menor-igual a-2.
Domínio: todo x pertencente ao conjunto IR, compreendidos no intervalo de x maior-igual a 6 e x menor-igual a-2.
Domínio: todo x pertencente ao conjunto IR, compreendidos no intervalo de x maior-igual a 0 e x menor-igual a -2.
Seja C= IR e F= IR, sendo IR, o conjunto dos números reais e a relação dada por x= y+ 1, podemos afirmar que o domínio e a imagem dessa relação é:
o conjunto dos números inteiros, pois há pares ordenados positivos e negativos somente, que pertencem a essa relação.
o conjunto dos números reais, pois há infinitos pares ordenados que pertencem a essa relação.
o conjunto dos números naturais apenas, pois há somente pares ordenados positivos que pertencem a essa relação.
o conjunto dos números reais, pois há finitos pares ordenados que pertencem a essa relação.
o domínio é o conjunto dos números reais e a imagem é o conjunto dos números irracionais.
Seja R uma relação definida pelo par ordenado (x, y), tal que x pertença ao conjunto dos números reais, definida por: 4 x2 + 16 y2 = 64 (equação da elipse), podemos dizer que a imagem está compreendida nos intervalos de:
[- 4, 4]
[ 2, 0]
[ 0, 4]
[- 2, 4]
[- 2, 2]
Analise as afirmativas a seguir, classifique-as em verdadeiro (V) ou falso (F). Assinale a alternativa que corresponde à resposta correta.
( ) - Todo número inteiro é uma classe de equivalência formada por pares ordenados (a, b) e (c, d) de números naturais que obedecem a lei a + d = b + c.
( ) - O conjunto Z é, portanto, o conjunto quociente de (N X N) / R.
( ) - Os pares ordenados que se relacionam, isto é, que pertencem a diferentes classes de equivalência, estão sobre uma mesma semirreta que tem origem nos eixos coordenados, dentro da definição de número inteiro como classe de equivalência.
( ) - Os pares ordenados que definem os números inteiros na relação de equivalência são do tipo
(n, 0) e (0, n).
V F F V
V V F V
V V V V
V V F F
F V F V
Para responder à questão observe as definições a seguir:
![](http://sga.uniube.br/images/uploads/14348/alg%20racionais.JPG)
Então, de acordo com as definições dadas, a alternativa que representa o resultado de (1/6) . (2/5), definidos na classe de equivalência é:
.
= ![(bar(1.5,6.2))](https://sga.uniube.br/tinyMCE3.4.4/cgi-bin/mimetex.cgi?%5Cdisplaystyle%7B%5Cleft(%7B%5Coverline%7B%7B%7B1.5%7D%2C%7B6.2%7D%7D%7D%7D%5Cright)%7D)
.
= ![(bar(-1.-5,-2.-6))](https://sga.uniube.br/tinyMCE3.4.4/cgi-bin/mimetex.cgi?%5Cdisplaystyle%7B%5Cleft(%7B%5Coverline%7B%7B-%7B1%7D.-%7B5%7D%2C-%7B2%7D.-%7B6%7D%7D%7D%7D%5Cright)%7D)
.
= ![(bar(1.6,2.5))](https://sga.uniube.br/tinyMCE3.4.4/cgi-bin/mimetex.cgi?%5Cdisplaystyle%7B%5Cleft(%7B%5Coverline%7B%7B%7B1.6%7D%2C%7B2.5%7D%7D%7D%7D%5Cright)%7D)
.
= ![(bar(-1.-2,6.5))](https://sga.uniube.br/tinyMCE3.4.4/cgi-bin/mimetex.cgi?%5Cdisplaystyle%7B%5Cleft(%7B%5Coverline%7B%7B-%7B1%7D.-%7B2%7D%2C%7B6.5%7D%7D%7D%7D%5Cright)%7D)
.
= ![(bar(1.2,6.5))](https://sga.uniube.br/tinyMCE3.4.4/cgi-bin/mimetex.cgi?%5Cdisplaystyle%7B%5Cleft(%7B%5Coverline%7B%7B%7B1.2%7D%2C%7B6.5%7D%7D%7D%7D%5Cright)%7D)
Para responder à questão observe as definições a seguir:
![](http://sga.uniube.br/images/uploads/14348/alg%20racionais.JPG)
Então, de acordo com as definições dadas, a alternativa que representa o resultado de (3/5) + (1/3), definidos na classe de equivalência é:
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![MathML (base64):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](data:image/png;base64,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)
Para responder à questão observe as definições a seguir:
Definição: todo número inteiro é uma classe de equivalência, formada por pares ordenados (a, b), (c, d) de números naturais que obedecem à lei a + d = b + c. O conjunto Z é, portanto, o conjunto quociente de (N x N)/R. Observe que o número inteiro passa a ser definido como uma diferença entre dois naturais.
Dados dois números inteiros definidos por suas classes de equivalência, temos:
![http://sga.uniube.br/images/uploads/14348/Alg%20mod%201.2.JPG](http://sga.uniube.br/images/uploads/14348/Alg%20mod%201.2.JPG)
Então, de acordo com as definições dadas, a alternativa que representa o resultado, por um par ordenado, de
( 4 ) - (- 2) . ( 3)+ (-3) . (5), definidos na classe de equivalência é:
R1 possui apenas a propriedade transitiva, R2 possui apenas a propriedade simétrica e R3 possui apenas a propriedade reflexiva.
R2 possui apenas a propriedade transitiva, R1 possui apenas a propriedade simétrica e R3 possui apenas a propriedade reflexiva.
R2 possui apenas a propriedade transitiva, R3 possui apenas a propriedade simétrica e R1 possui apenas a propriedade reflexiva.
R3 possui apenas a propriedade transitiva, R2 possui apenas a propriedade simétrica e R1 possui apenas a propriedade reflexiva.
R1 possui apenas a propriedade transitiva, R2 possui apenas a propriedade simétrica e R3 possui as propriedades reflexiva e simétrica.
Dada a relação de IR em IR definida por x2 + y2 - 4x + 8y +16 = 0, teremos como resposta correta para determinar o domínio de R-1.
Domínio: todo x pertencente ao conjunto IR, compreendidos no intervalo de x maior-igual a 0 e x menor-igual a -4.
Domínio: todo x pertencente ao conjunto IR, compreendidos no intervalo de x maior-igual a 4 e x menor-igual a-2.
Domínio: todo x pertencente ao conjunto IR, compreendidos no intervalo de x maior-igual a -6 e x menor-igual a-2.
Domínio: todo x pertencente ao conjunto IR, compreendidos no intervalo de x maior-igual a 6 e x menor-igual a-2.
Domínio: todo x pertencente ao conjunto IR, compreendidos no intervalo de x maior-igual a 0 e x menor-igual a -2.
Seja C= IR e F= IR, sendo IR, o conjunto dos números reais e a relação dada por x= y+ 1, podemos afirmar que o domínio e a imagem dessa relação é:
o conjunto dos números inteiros, pois há pares ordenados positivos e negativos somente, que pertencem a essa relação.
o conjunto dos números reais, pois há infinitos pares ordenados que pertencem a essa relação.
o conjunto dos números naturais apenas, pois há somente pares ordenados positivos que pertencem a essa relação.
o conjunto dos números reais, pois há finitos pares ordenados que pertencem a essa relação.
o domínio é o conjunto dos números reais e a imagem é o conjunto dos números irracionais.
Seja R uma relação definida pelo par ordenado (x, y), tal que x pertença ao conjunto dos números reais, definida por: 4 x2 + 16 y2 = 64 (equação da elipse), podemos dizer que a imagem está compreendida nos intervalos de:
[- 4, 4]
[ 2, 0]
[ 0, 4]
[- 2, 4]
[- 2, 2]
Analise as afirmativas a seguir, classifique-as em verdadeiro (V) ou falso (F). Assinale a alternativa que corresponde à resposta correta.
( ) - Todo número inteiro é uma classe de equivalência formada por pares ordenados (a, b) e (c, d) de números naturais que obedecem a lei a + d = b + c.
( ) - O conjunto Z é, portanto, o conjunto quociente de (N X N) / R.
( ) - Os pares ordenados que se relacionam, isto é, que pertencem a diferentes classes de equivalência, estão sobre uma mesma semirreta que tem origem nos eixos coordenados, dentro da definição de número inteiro como classe de equivalência.
( ) - Os pares ordenados que definem os números inteiros na relação de equivalência são do tipo
(n, 0) e (0, n).
V F F V
V V F V
V V V V
V V F F
F V F V
Para responder à questão observe as definições a seguir:
![](http://sga.uniube.br/images/uploads/14348/alg%20racionais.JPG)
Então, de acordo com as definições dadas, a alternativa que representa o resultado de (1/6) . (2/5), definidos na classe de equivalência é:
.
= ![(bar(1.5,6.2))](https://sga.uniube.br/tinyMCE3.4.4/cgi-bin/mimetex.cgi?%5Cdisplaystyle%7B%5Cleft(%7B%5Coverline%7B%7B%7B1.5%7D%2C%7B6.2%7D%7D%7D%7D%5Cright)%7D)
.
= ![(bar(-1.-5,-2.-6))](https://sga.uniube.br/tinyMCE3.4.4/cgi-bin/mimetex.cgi?%5Cdisplaystyle%7B%5Cleft(%7B%5Coverline%7B%7B-%7B1%7D.-%7B5%7D%2C-%7B2%7D.-%7B6%7D%7D%7D%7D%5Cright)%7D)
.
= ![(bar(1.6,2.5))](https://sga.uniube.br/tinyMCE3.4.4/cgi-bin/mimetex.cgi?%5Cdisplaystyle%7B%5Cleft(%7B%5Coverline%7B%7B%7B1.6%7D%2C%7B2.5%7D%7D%7D%7D%5Cright)%7D)
.
= ![(bar(-1.-2,6.5))](https://sga.uniube.br/tinyMCE3.4.4/cgi-bin/mimetex.cgi?%5Cdisplaystyle%7B%5Cleft(%7B%5Coverline%7B%7B-%7B1%7D.-%7B2%7D%2C%7B6.5%7D%7D%7D%7D%5Cright)%7D)
.
= ![(bar(1.2,6.5))](https://sga.uniube.br/tinyMCE3.4.4/cgi-bin/mimetex.cgi?%5Cdisplaystyle%7B%5Cleft(%7B%5Coverline%7B%7B%7B1.2%7D%2C%7B6.5%7D%7D%7D%7D%5Cright)%7D)
Para responder à questão observe as definições a seguir:
![](http://sga.uniube.br/images/uploads/14348/alg%20racionais.JPG)
Então, de acordo com as definições dadas, a alternativa que representa o resultado de (3/5) + (1/3), definidos na classe de equivalência é:
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![MathML (base64):PG1hdGg+CiAgICA8bW92ZXI+CiAgICAgICAgPG1yb3c+CiAgICAgICAgICAgIDxtbyBtYXhzaXplPSIxIj4oPC9tbz4KICAgICAgICAgICAgPG1uPjM8L21uPgogICAgICAgICAgICA8bW8+LjwvbW8+CiAgICAgICAgICAgIDxtbj4zPC9tbj4KICAgICAgICAgICAgPG1vPis8L21vPgogICAgICAgICAgICA8bW4+NTwvbW4+CiAgICAgICAgICAgIDxtbz4uPC9tbz4KICAgICAgICAgICAgPG1uPjE8L21uPgogICAgICAgICAgICA8bW8+LDwvbW8+CiAgICAgICAgICAgIDxtbj41PC9tbj4KICAgICAgICAgICAgPG1vPi48L21vPgogICAgICAgICAgICA8bW4+MzwvbW4+CiAgICAgICAgICAgIDxtbyBtYXhzaXplPSIxIj4pPC9tbz4KICAgICAgICA8L21yb3c+CiAgICAgICAgPG1vPiYjeDIwM0U7PC9tbz4KICAgIDwvbW92ZXI+CjwvbWF0aD4=](data:image/png;base64,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)
Para responder à questão observe as definições a seguir:
Definição: todo número inteiro é uma classe de equivalência, formada por pares ordenados (a, b), (c, d) de números naturais que obedecem à lei a + d = b + c. O conjunto Z é, portanto, o conjunto quociente de (N x N)/R. Observe que o número inteiro passa a ser definido como uma diferença entre dois naturais.
Dados dois números inteiros definidos por suas classes de equivalência, temos:
![http://sga.uniube.br/images/uploads/14348/Alg%20mod%201.2.JPG](http://sga.uniube.br/images/uploads/14348/Alg%20mod%201.2.JPG)
Então, de acordo com as definições dadas, a alternativa que representa o resultado, por um par ordenado, de
( 4 ) - (- 2) . ( 3)+ (-3) . (5), definidos na classe de equivalência é:
Domínio: todo x pertencente ao conjunto IR, compreendidos no intervalo de x maior-igual a 0 e x menor-igual a -4.
Domínio: todo x pertencente ao conjunto IR, compreendidos no intervalo de x maior-igual a 4 e x menor-igual a-2.
Domínio: todo x pertencente ao conjunto IR, compreendidos no intervalo de x maior-igual a -6 e x menor-igual a-2.
Domínio: todo x pertencente ao conjunto IR, compreendidos no intervalo de x maior-igual a 6 e x menor-igual a-2.
Domínio: todo x pertencente ao conjunto IR, compreendidos no intervalo de x maior-igual a 0 e x menor-igual a -2.
Seja C= IR e F= IR, sendo IR, o conjunto dos números reais e a relação dada por x= y+ 1, podemos afirmar que o domínio e a imagem dessa relação é:
o conjunto dos números inteiros, pois há pares ordenados positivos e negativos somente, que pertencem a essa relação.
o conjunto dos números reais, pois há infinitos pares ordenados que pertencem a essa relação.
o conjunto dos números naturais apenas, pois há somente pares ordenados positivos que pertencem a essa relação.
o conjunto dos números reais, pois há finitos pares ordenados que pertencem a essa relação.
o domínio é o conjunto dos números reais e a imagem é o conjunto dos números irracionais.
Seja R uma relação definida pelo par ordenado (x, y), tal que x pertença ao conjunto dos números reais, definida por: 4 x2 + 16 y2 = 64 (equação da elipse), podemos dizer que a imagem está compreendida nos intervalos de:
[- 4, 4]
[ 2, 0]
[ 0, 4]
[- 2, 4]
[- 2, 2]
Analise as afirmativas a seguir, classifique-as em verdadeiro (V) ou falso (F). Assinale a alternativa que corresponde à resposta correta.
( ) - Todo número inteiro é uma classe de equivalência formada por pares ordenados (a, b) e (c, d) de números naturais que obedecem a lei a + d = b + c.
( ) - O conjunto Z é, portanto, o conjunto quociente de (N X N) / R.
( ) - Os pares ordenados que se relacionam, isto é, que pertencem a diferentes classes de equivalência, estão sobre uma mesma semirreta que tem origem nos eixos coordenados, dentro da definição de número inteiro como classe de equivalência.
( ) - Os pares ordenados que definem os números inteiros na relação de equivalência são do tipo
(n, 0) e (0, n).
V F F V
V V F V
V V V V
V V F F
F V F V
Para responder à questão observe as definições a seguir:
![](http://sga.uniube.br/images/uploads/14348/alg%20racionais.JPG)
Então, de acordo com as definições dadas, a alternativa que representa o resultado de (1/6) . (2/5), definidos na classe de equivalência é:
.
= ![(bar(1.5,6.2))](https://sga.uniube.br/tinyMCE3.4.4/cgi-bin/mimetex.cgi?%5Cdisplaystyle%7B%5Cleft(%7B%5Coverline%7B%7B%7B1.5%7D%2C%7B6.2%7D%7D%7D%7D%5Cright)%7D)
.
= ![(bar(-1.-5,-2.-6))](https://sga.uniube.br/tinyMCE3.4.4/cgi-bin/mimetex.cgi?%5Cdisplaystyle%7B%5Cleft(%7B%5Coverline%7B%7B-%7B1%7D.-%7B5%7D%2C-%7B2%7D.-%7B6%7D%7D%7D%7D%5Cright)%7D)
.
= ![(bar(1.6,2.5))](https://sga.uniube.br/tinyMCE3.4.4/cgi-bin/mimetex.cgi?%5Cdisplaystyle%7B%5Cleft(%7B%5Coverline%7B%7B%7B1.6%7D%2C%7B2.5%7D%7D%7D%7D%5Cright)%7D)
.
= ![(bar(-1.-2,6.5))](https://sga.uniube.br/tinyMCE3.4.4/cgi-bin/mimetex.cgi?%5Cdisplaystyle%7B%5Cleft(%7B%5Coverline%7B%7B-%7B1%7D.-%7B2%7D%2C%7B6.5%7D%7D%7D%7D%5Cright)%7D)
.
= ![(bar(1.2,6.5))](https://sga.uniube.br/tinyMCE3.4.4/cgi-bin/mimetex.cgi?%5Cdisplaystyle%7B%5Cleft(%7B%5Coverline%7B%7B%7B1.2%7D%2C%7B6.5%7D%7D%7D%7D%5Cright)%7D)
Para responder à questão observe as definições a seguir:
![](http://sga.uniube.br/images/uploads/14348/alg%20racionais.JPG)
Então, de acordo com as definições dadas, a alternativa que representa o resultado de (3/5) + (1/3), definidos na classe de equivalência é:
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![MathML (base64):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](data:image/png;base64,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)
Para responder à questão observe as definições a seguir:
Definição: todo número inteiro é uma classe de equivalência, formada por pares ordenados (a, b), (c, d) de números naturais que obedecem à lei a + d = b + c. O conjunto Z é, portanto, o conjunto quociente de (N x N)/R. Observe que o número inteiro passa a ser definido como uma diferença entre dois naturais.
Dados dois números inteiros definidos por suas classes de equivalência, temos:
![http://sga.uniube.br/images/uploads/14348/Alg%20mod%201.2.JPG](http://sga.uniube.br/images/uploads/14348/Alg%20mod%201.2.JPG)
Então, de acordo com as definições dadas, a alternativa que representa o resultado, por um par ordenado, de
( 4 ) - (- 2) . ( 3)+ (-3) . (5), definidos na classe de equivalência é:
o conjunto dos números inteiros, pois há pares ordenados positivos e negativos somente, que pertencem a essa relação.
o conjunto dos números reais, pois há infinitos pares ordenados que pertencem a essa relação.
o conjunto dos números naturais apenas, pois há somente pares ordenados positivos que pertencem a essa relação.
o conjunto dos números reais, pois há finitos pares ordenados que pertencem a essa relação.
o domínio é o conjunto dos números reais e a imagem é o conjunto dos números irracionais.
Seja R uma relação definida pelo par ordenado (x, y), tal que x pertença ao conjunto dos números reais, definida por: 4 x2 + 16 y2 = 64 (equação da elipse), podemos dizer que a imagem está compreendida nos intervalos de:
[- 4, 4]
[ 2, 0]
[ 0, 4]
[- 2, 4]
[- 2, 2]
Analise as afirmativas a seguir, classifique-as em verdadeiro (V) ou falso (F). Assinale a alternativa que corresponde à resposta correta.
( ) - Todo número inteiro é uma classe de equivalência formada por pares ordenados (a, b) e (c, d) de números naturais que obedecem a lei a + d = b + c.
( ) - O conjunto Z é, portanto, o conjunto quociente de (N X N) / R.
( ) - Os pares ordenados que se relacionam, isto é, que pertencem a diferentes classes de equivalência, estão sobre uma mesma semirreta que tem origem nos eixos coordenados, dentro da definição de número inteiro como classe de equivalência.
( ) - Os pares ordenados que definem os números inteiros na relação de equivalência são do tipo
(n, 0) e (0, n).
V F F V
V V F V
V V V V
V V F F
F V F V
Para responder à questão observe as definições a seguir:
![](http://sga.uniube.br/images/uploads/14348/alg%20racionais.JPG)
Então, de acordo com as definições dadas, a alternativa que representa o resultado de (1/6) . (2/5), definidos na classe de equivalência é:
.
= ![(bar(1.5,6.2))](https://sga.uniube.br/tinyMCE3.4.4/cgi-bin/mimetex.cgi?%5Cdisplaystyle%7B%5Cleft(%7B%5Coverline%7B%7B%7B1.5%7D%2C%7B6.2%7D%7D%7D%7D%5Cright)%7D)
.
= ![(bar(-1.-5,-2.-6))](https://sga.uniube.br/tinyMCE3.4.4/cgi-bin/mimetex.cgi?%5Cdisplaystyle%7B%5Cleft(%7B%5Coverline%7B%7B-%7B1%7D.-%7B5%7D%2C-%7B2%7D.-%7B6%7D%7D%7D%7D%5Cright)%7D)
.
= ![(bar(1.6,2.5))](https://sga.uniube.br/tinyMCE3.4.4/cgi-bin/mimetex.cgi?%5Cdisplaystyle%7B%5Cleft(%7B%5Coverline%7B%7B%7B1.6%7D%2C%7B2.5%7D%7D%7D%7D%5Cright)%7D)
.
= ![(bar(-1.-2,6.5))](https://sga.uniube.br/tinyMCE3.4.4/cgi-bin/mimetex.cgi?%5Cdisplaystyle%7B%5Cleft(%7B%5Coverline%7B%7B-%7B1%7D.-%7B2%7D%2C%7B6.5%7D%7D%7D%7D%5Cright)%7D)
.
= ![(bar(1.2,6.5))](https://sga.uniube.br/tinyMCE3.4.4/cgi-bin/mimetex.cgi?%5Cdisplaystyle%7B%5Cleft(%7B%5Coverline%7B%7B%7B1.2%7D%2C%7B6.5%7D%7D%7D%7D%5Cright)%7D)
Para responder à questão observe as definições a seguir:
![](http://sga.uniube.br/images/uploads/14348/alg%20racionais.JPG)
Então, de acordo com as definições dadas, a alternativa que representa o resultado de (3/5) + (1/3), definidos na classe de equivalência é:
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![MathML (base64):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](data:image/png;base64,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)
Para responder à questão observe as definições a seguir:
Definição: todo número inteiro é uma classe de equivalência, formada por pares ordenados (a, b), (c, d) de números naturais que obedecem à lei a + d = b + c. O conjunto Z é, portanto, o conjunto quociente de (N x N)/R. Observe que o número inteiro passa a ser definido como uma diferença entre dois naturais.
Dados dois números inteiros definidos por suas classes de equivalência, temos:
![http://sga.uniube.br/images/uploads/14348/Alg%20mod%201.2.JPG](http://sga.uniube.br/images/uploads/14348/Alg%20mod%201.2.JPG)
Então, de acordo com as definições dadas, a alternativa que representa o resultado, por um par ordenado, de
( 4 ) - (- 2) . ( 3)+ (-3) . (5), definidos na classe de equivalência é:
[- 4, 4]
[ 2, 0]
[ 0, 4]
[- 2, 4]
[- 2, 2]
Analise as afirmativas a seguir, classifique-as em verdadeiro (V) ou falso (F). Assinale a alternativa que corresponde à resposta correta.
( ) - Todo número inteiro é uma classe de equivalência formada por pares ordenados (a, b) e (c, d) de números naturais que obedecem a lei a + d = b + c.
( ) - O conjunto Z é, portanto, o conjunto quociente de (N X N) / R.
( ) - Os pares ordenados que se relacionam, isto é, que pertencem a diferentes classes de equivalência, estão sobre uma mesma semirreta que tem origem nos eixos coordenados, dentro da definição de número inteiro como classe de equivalência.
( ) - Os pares ordenados que definem os números inteiros na relação de equivalência são do tipo
(n, 0) e (0, n).
V F F V
V V F V
V V V V
V V F F
F V F V
Para responder à questão observe as definições a seguir:
![](http://sga.uniube.br/images/uploads/14348/alg%20racionais.JPG)
Então, de acordo com as definições dadas, a alternativa que representa o resultado de (1/6) . (2/5), definidos na classe de equivalência é:
.
= ![(bar(1.5,6.2))](https://sga.uniube.br/tinyMCE3.4.4/cgi-bin/mimetex.cgi?%5Cdisplaystyle%7B%5Cleft(%7B%5Coverline%7B%7B%7B1.5%7D%2C%7B6.2%7D%7D%7D%7D%5Cright)%7D)
.
= ![(bar(-1.-5,-2.-6))](https://sga.uniube.br/tinyMCE3.4.4/cgi-bin/mimetex.cgi?%5Cdisplaystyle%7B%5Cleft(%7B%5Coverline%7B%7B-%7B1%7D.-%7B5%7D%2C-%7B2%7D.-%7B6%7D%7D%7D%7D%5Cright)%7D)
.
= ![(bar(1.6,2.5))](https://sga.uniube.br/tinyMCE3.4.4/cgi-bin/mimetex.cgi?%5Cdisplaystyle%7B%5Cleft(%7B%5Coverline%7B%7B%7B1.6%7D%2C%7B2.5%7D%7D%7D%7D%5Cright)%7D)
.
= ![(bar(-1.-2,6.5))](https://sga.uniube.br/tinyMCE3.4.4/cgi-bin/mimetex.cgi?%5Cdisplaystyle%7B%5Cleft(%7B%5Coverline%7B%7B-%7B1%7D.-%7B2%7D%2C%7B6.5%7D%7D%7D%7D%5Cright)%7D)
.
= ![(bar(1.2,6.5))](https://sga.uniube.br/tinyMCE3.4.4/cgi-bin/mimetex.cgi?%5Cdisplaystyle%7B%5Cleft(%7B%5Coverline%7B%7B%7B1.2%7D%2C%7B6.5%7D%7D%7D%7D%5Cright)%7D)
Para responder à questão observe as definições a seguir:
![](http://sga.uniube.br/images/uploads/14348/alg%20racionais.JPG)
Então, de acordo com as definições dadas, a alternativa que representa o resultado de (3/5) + (1/3), definidos na classe de equivalência é:
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![MathML (base64):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](data:image/png;base64,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)
Para responder à questão observe as definições a seguir:
Definição: todo número inteiro é uma classe de equivalência, formada por pares ordenados (a, b), (c, d) de números naturais que obedecem à lei a + d = b + c. O conjunto Z é, portanto, o conjunto quociente de (N x N)/R. Observe que o número inteiro passa a ser definido como uma diferença entre dois naturais.
Dados dois números inteiros definidos por suas classes de equivalência, temos:
![http://sga.uniube.br/images/uploads/14348/Alg%20mod%201.2.JPG](http://sga.uniube.br/images/uploads/14348/Alg%20mod%201.2.JPG)
Então, de acordo com as definições dadas, a alternativa que representa o resultado, por um par ordenado, de
( 4 ) - (- 2) . ( 3)+ (-3) . (5), definidos na classe de equivalência é:
V F F V
V V F V
V V V V
V V F F
F V F V
Para responder à questão observe as definições a seguir:
![](http://sga.uniube.br/images/uploads/14348/alg%20racionais.JPG)
Então, de acordo com as definições dadas, a alternativa que representa o resultado de (1/6) . (2/5), definidos na classe de equivalência é:
.
= ![(bar(1.5,6.2))](https://sga.uniube.br/tinyMCE3.4.4/cgi-bin/mimetex.cgi?%5Cdisplaystyle%7B%5Cleft(%7B%5Coverline%7B%7B%7B1.5%7D%2C%7B6.2%7D%7D%7D%7D%5Cright)%7D)
.
= ![(bar(-1.-5,-2.-6))](https://sga.uniube.br/tinyMCE3.4.4/cgi-bin/mimetex.cgi?%5Cdisplaystyle%7B%5Cleft(%7B%5Coverline%7B%7B-%7B1%7D.-%7B5%7D%2C-%7B2%7D.-%7B6%7D%7D%7D%7D%5Cright)%7D)
.
= ![(bar(1.6,2.5))](https://sga.uniube.br/tinyMCE3.4.4/cgi-bin/mimetex.cgi?%5Cdisplaystyle%7B%5Cleft(%7B%5Coverline%7B%7B%7B1.6%7D%2C%7B2.5%7D%7D%7D%7D%5Cright)%7D)
.
= ![(bar(-1.-2,6.5))](https://sga.uniube.br/tinyMCE3.4.4/cgi-bin/mimetex.cgi?%5Cdisplaystyle%7B%5Cleft(%7B%5Coverline%7B%7B-%7B1%7D.-%7B2%7D%2C%7B6.5%7D%7D%7D%7D%5Cright)%7D)
.
= ![(bar(1.2,6.5))](https://sga.uniube.br/tinyMCE3.4.4/cgi-bin/mimetex.cgi?%5Cdisplaystyle%7B%5Cleft(%7B%5Coverline%7B%7B%7B1.2%7D%2C%7B6.5%7D%7D%7D%7D%5Cright)%7D)
Para responder à questão observe as definições a seguir:
![](http://sga.uniube.br/images/uploads/14348/alg%20racionais.JPG)
Então, de acordo com as definições dadas, a alternativa que representa o resultado de (3/5) + (1/3), definidos na classe de equivalência é:
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Para responder à questão observe as definições a seguir:
Definição: todo número inteiro é uma classe de equivalência, formada por pares ordenados (a, b), (c, d) de números naturais que obedecem à lei a + d = b + c. O conjunto Z é, portanto, o conjunto quociente de (N x N)/R. Observe que o número inteiro passa a ser definido como uma diferença entre dois naturais.
Dados dois números inteiros definidos por suas classes de equivalência, temos:
![http://sga.uniube.br/images/uploads/14348/Alg%20mod%201.2.JPG](http://sga.uniube.br/images/uploads/14348/Alg%20mod%201.2.JPG)
Então, de acordo com as definições dadas, a alternativa que representa o resultado, por um par ordenado, de
( 4 ) - (- 2) . ( 3)+ (-3) . (5), definidos na classe de equivalência é:
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