ÁLGEBRA MODERNA I
Para obter o resultado do quadrado da soma de dois termos, usamos (a + b)2, ou ainda usamos a representação geométrica considerando um quadrado de lado ( a + b), sendo assim podemos afirmar que há a concepção fundamentalista analógica de educação algébrica porque utiliza:
Utiliza das relações e propriedades com recursos visuais para representar o produto notável.
Utiliza recursos da linguagem tradicional de modo algébrico e sistêmico para apresentar um objeto: o produto notável.
Utiliza de estruturas polinomiais e operações que podem ser realizadas para mostrar o produto notável.
Utiliza recursos da geometria de modo visual para apresentar um objeto algébrico: o produto notável.
Utiliza do pensamento algébrico relacionado à linguagem simbólica que implica letras, números e geometria para definir o produto notável.
A estrutura Matemática usada para descrever este tipo de organização de conjuntos é a teoria das relações.
Chama-se "relação de E em E" a todo subconjunto do produto cartesiano EXE. Em particular, uma relação de um conjunto E no mesmo conjunto E é chamada "relação em E".
Na Matemática, uma relação de equivalência é uma relação binária que é reflexiva, simétrica e transitiva.
Sendo E= {5, 6, 7} e considerando as relações em E:
R1= {(5, 6); (7, 5); (6, 6); (7, 7)}.
R2= {(5, 5); (5, 6); (5, 7); (6, 5); (6, 6); (6, 7); (7, 5); (7, 6); (7, 7)}.
R3= {(5, 5); (5, 6); (5, 7); (6, 5); (6, 7); (7, 5); (7, 6)}.
R4= E x E
R5= ø (vazio)
Quais são as relações que apresentam uma relação de equivalência?
R2,e R4
R2, R3 e R5.
R3, R4 e R5.
R1 e R4
R2, R3 e R4.
Seja R uma relação definida pelo par ordenado (x, y), tal que x pertença ao conjunto dos números reais, definida por: 4 x2 + 25 y2 = 100 (equação da elipse), podemos dizer que o domínio e a imagem estão compreendidos, respectivamente, nos intervalos de:
[0, - 5] e [- 2, 2]
[ -5, - 5] e [- 2, 2]
[ 5, - 5] e [- 2, 2]
[25, - 25] e [- 4, 4]
[ 5, - 5] e [0, 2]
Dada a função f(x) = 4x + 5, determine x tal que f(x) = 7.
Solução. O valor procurado o elemento “x” do domínio que possui imagem y = 7. E X= 1/2.
Relacionando o exemplo citado às concepções estudadas, podemos dizer que o papel das letras está sendo utilizado para:
Relacionar argumentos.
Efetuar métodos informais de resolução.
Traduzir e generalizar.
Apenas atuar como incógnita.
Manipular e justificar.
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 (2/5) . (1/7) + (1/2) . (5/3), definidos na classe de equivalência é:
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Quais das afirmativas abaixo podem ser consideradas característica do pensamento algébrico?
Analise as afirmações em verdadeiras ou falsas e assinale a alternativa que indica a ordem correta de suas respostas de acordo com a leitura de seu livro texto.
( ) Presença de um processo de generalização.
( ) Tentativa de explicar a estrutura de uma situação problema.
( ) Tentativa de descobrir o significado da incógnita.
( ) Percepção de aspectos invariantes em contraste com outros que variam.
( ) Percepção de regularidades.
V F V F V
V V F F V
F V V F V
V V F V F
V V F V V
Qual das relações , pode ser considerada uma relação de equivalência, sendo E= {1, 2, 3, 4}?
R1= {(1, 1); (1, 2); (2, 2); (2, 4); (3, 3); (4, 4); (4, 3)}.
R2= {(1, 1); (1, 2); (2, 4); (3, 3); (4, 4); (3, 2)}.
R3= {(1, 2); (1; 4); (2, 1); (2, 3); (3, 3); (4,1); (3, 2)}.
R4= {(1, 1); (1, 2); (1, 4); (2, 1); (2, 2); (2, 4); (3, 3); (4, 1); (4, 2); (4, 4)}.
R5= {(1, 3); (1, 2); (2, 3); (2, 4); (3, 3); (4, 4)}.
R1
R2
R4
R5
R3
Para responder à questão observe as definições a seguir:
![http://sga.uniube.br/images/uploads/14348/alg%20racionais.JPG](http://sga.uniube.br/images/uploads/14348/alg%20racionais.JPG)
Então, de acordo com as definições dadas, a alternativa que representa o resultado de
(1/2) . (1/3) + (1/4) . (1/3), definidos na classe de equivalência é:
Utiliza das relações e propriedades com recursos visuais para representar o produto notável.
Utiliza recursos da linguagem tradicional de modo algébrico e sistêmico para apresentar um objeto: o produto notável.
Utiliza de estruturas polinomiais e operações que podem ser realizadas para mostrar o produto notável.
Utiliza recursos da geometria de modo visual para apresentar um objeto algébrico: o produto notável.
Utiliza do pensamento algébrico relacionado à linguagem simbólica que implica letras, números e geometria para definir o produto notável.
A estrutura Matemática usada para descrever este tipo de organização de conjuntos é a teoria das relações.
Chama-se "relação de E em E" a todo subconjunto do produto cartesiano EXE. Em particular, uma relação de um conjunto E no mesmo conjunto E é chamada "relação em E".
Na Matemática, uma relação de equivalência é uma relação binária que é reflexiva, simétrica e transitiva.
Sendo E= {5, 6, 7} e considerando as relações em E:
R1= {(5, 6); (7, 5); (6, 6); (7, 7)}.
R2= {(5, 5); (5, 6); (5, 7); (6, 5); (6, 6); (6, 7); (7, 5); (7, 6); (7, 7)}.
R3= {(5, 5); (5, 6); (5, 7); (6, 5); (6, 7); (7, 5); (7, 6)}.
R4= E x E
R5= ø (vazio)
Quais são as relações que apresentam uma relação de equivalência?
R2,e R4
R2, R3 e R5.
R3, R4 e R5.
R1 e R4
R2, R3 e R4.
Seja R uma relação definida pelo par ordenado (x, y), tal que x pertença ao conjunto dos números reais, definida por: 4 x2 + 25 y2 = 100 (equação da elipse), podemos dizer que o domínio e a imagem estão compreendidos, respectivamente, nos intervalos de:
[0, - 5] e [- 2, 2]
[ -5, - 5] e [- 2, 2]
[ 5, - 5] e [- 2, 2]
[25, - 25] e [- 4, 4]
[ 5, - 5] e [0, 2]
Dada a função f(x) = 4x + 5, determine x tal que f(x) = 7.
Solução. O valor procurado o elemento “x” do domínio que possui imagem y = 7. E X= 1/2.
Relacionando o exemplo citado às concepções estudadas, podemos dizer que o papel das letras está sendo utilizado para:
Relacionar argumentos.
Efetuar métodos informais de resolução.
Traduzir e generalizar.
Apenas atuar como incógnita.
Manipular e justificar.
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 (2/5) . (1/7) + (1/2) . (5/3), definidos na classe de equivalência é:
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Quais das afirmativas abaixo podem ser consideradas característica do pensamento algébrico?
Analise as afirmações em verdadeiras ou falsas e assinale a alternativa que indica a ordem correta de suas respostas de acordo com a leitura de seu livro texto.
( ) Presença de um processo de generalização.
( ) Tentativa de explicar a estrutura de uma situação problema.
( ) Tentativa de descobrir o significado da incógnita.
( ) Percepção de aspectos invariantes em contraste com outros que variam.
( ) Percepção de regularidades.
V F V F V
V V F F V
F V V F V
V V F V F
V V F V V
Qual das relações , pode ser considerada uma relação de equivalência, sendo E= {1, 2, 3, 4}?
R1= {(1, 1); (1, 2); (2, 2); (2, 4); (3, 3); (4, 4); (4, 3)}.
R2= {(1, 1); (1, 2); (2, 4); (3, 3); (4, 4); (3, 2)}.
R3= {(1, 2); (1; 4); (2, 1); (2, 3); (3, 3); (4,1); (3, 2)}.
R4= {(1, 1); (1, 2); (1, 4); (2, 1); (2, 2); (2, 4); (3, 3); (4, 1); (4, 2); (4, 4)}.
R5= {(1, 3); (1, 2); (2, 3); (2, 4); (3, 3); (4, 4)}.
R1
R2
R4
R5
R3
Para responder à questão observe as definições a seguir:
![http://sga.uniube.br/images/uploads/14348/alg%20racionais.JPG](http://sga.uniube.br/images/uploads/14348/alg%20racionais.JPG)
Então, de acordo com as definições dadas, a alternativa que representa o resultado de
(1/2) . (1/3) + (1/4) . (1/3), definidos na classe de equivalência é:
R2,e R4
R2, R3 e R5.
R3, R4 e R5.
R1 e R4
R2, R3 e R4.
Seja R uma relação definida pelo par ordenado (x, y), tal que x pertença ao conjunto dos números reais, definida por: 4 x2 + 25 y2 = 100 (equação da elipse), podemos dizer que o domínio e a imagem estão compreendidos, respectivamente, nos intervalos de:
[0, - 5] e [- 2, 2]
[ -5, - 5] e [- 2, 2]
[ 5, - 5] e [- 2, 2]
[25, - 25] e [- 4, 4]
[ 5, - 5] e [0, 2]
Dada a função f(x) = 4x + 5, determine x tal que f(x) = 7.
Solução. O valor procurado o elemento “x” do domínio que possui imagem y = 7. E X= 1/2.
Relacionando o exemplo citado às concepções estudadas, podemos dizer que o papel das letras está sendo utilizado para:
Relacionar argumentos.
Efetuar métodos informais de resolução.
Traduzir e generalizar.
Apenas atuar como incógnita.
Manipular e justificar.
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 (2/5) . (1/7) + (1/2) . (5/3), definidos na classe de equivalência é:
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Quais das afirmativas abaixo podem ser consideradas característica do pensamento algébrico?
Analise as afirmações em verdadeiras ou falsas e assinale a alternativa que indica a ordem correta de suas respostas de acordo com a leitura de seu livro texto.
( ) Presença de um processo de generalização.
( ) Tentativa de explicar a estrutura de uma situação problema.
( ) Tentativa de descobrir o significado da incógnita.
( ) Percepção de aspectos invariantes em contraste com outros que variam.
( ) Percepção de regularidades.
V F V F V
V V F F V
F V V F V
V V F V F
V V F V V
Qual das relações , pode ser considerada uma relação de equivalência, sendo E= {1, 2, 3, 4}?
R1= {(1, 1); (1, 2); (2, 2); (2, 4); (3, 3); (4, 4); (4, 3)}.
R2= {(1, 1); (1, 2); (2, 4); (3, 3); (4, 4); (3, 2)}.
R3= {(1, 2); (1; 4); (2, 1); (2, 3); (3, 3); (4,1); (3, 2)}.
R4= {(1, 1); (1, 2); (1, 4); (2, 1); (2, 2); (2, 4); (3, 3); (4, 1); (4, 2); (4, 4)}.
R5= {(1, 3); (1, 2); (2, 3); (2, 4); (3, 3); (4, 4)}.
R1
R2
R4
R5
R3
Para responder à questão observe as definições a seguir:
![http://sga.uniube.br/images/uploads/14348/alg%20racionais.JPG](http://sga.uniube.br/images/uploads/14348/alg%20racionais.JPG)
Então, de acordo com as definições dadas, a alternativa que representa o resultado de
(1/2) . (1/3) + (1/4) . (1/3), definidos na classe de equivalência é:
[0, - 5] e [- 2, 2]
[ -5, - 5] e [- 2, 2]
[ 5, - 5] e [- 2, 2]
[25, - 25] e [- 4, 4]
[ 5, - 5] e [0, 2]
Dada a função f(x) = 4x + 5, determine x tal que f(x) = 7.
Solução. O valor procurado o elemento “x” do domínio que possui imagem y = 7. E X= 1/2.
Relacionando o exemplo citado às concepções estudadas, podemos dizer que o papel das letras está sendo utilizado para:
Relacionar argumentos.
Efetuar métodos informais de resolução.
Traduzir e generalizar.
Apenas atuar como incógnita.
Manipular e justificar.
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 (2/5) . (1/7) + (1/2) . (5/3), definidos na classe de equivalência é:
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Quais das afirmativas abaixo podem ser consideradas característica do pensamento algébrico?
Analise as afirmações em verdadeiras ou falsas e assinale a alternativa que indica a ordem correta de suas respostas de acordo com a leitura de seu livro texto.
( ) Presença de um processo de generalização.
( ) Tentativa de explicar a estrutura de uma situação problema.
( ) Tentativa de descobrir o significado da incógnita.
( ) Percepção de aspectos invariantes em contraste com outros que variam.
( ) Percepção de regularidades.
V F V F V
V V F F V
F V V F V
V V F V F
V V F V V
Qual das relações , pode ser considerada uma relação de equivalência, sendo E= {1, 2, 3, 4}?
R1= {(1, 1); (1, 2); (2, 2); (2, 4); (3, 3); (4, 4); (4, 3)}.
R2= {(1, 1); (1, 2); (2, 4); (3, 3); (4, 4); (3, 2)}.
R3= {(1, 2); (1; 4); (2, 1); (2, 3); (3, 3); (4,1); (3, 2)}.
R4= {(1, 1); (1, 2); (1, 4); (2, 1); (2, 2); (2, 4); (3, 3); (4, 1); (4, 2); (4, 4)}.
R5= {(1, 3); (1, 2); (2, 3); (2, 4); (3, 3); (4, 4)}.
R1
R2
R4
R5
R3
Para responder à questão observe as definições a seguir:
![http://sga.uniube.br/images/uploads/14348/alg%20racionais.JPG](http://sga.uniube.br/images/uploads/14348/alg%20racionais.JPG)
Então, de acordo com as definições dadas, a alternativa que representa o resultado de
(1/2) . (1/3) + (1/4) . (1/3), definidos na classe de equivalência é:
Relacionar argumentos.
Efetuar métodos informais de resolução.
Traduzir e generalizar.
Apenas atuar como incógnita.
Manipular e justificar.
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 (2/5) . (1/7) + (1/2) . (5/3), definidos na classe de equivalência é:
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![MathML (base64):PG1hdGg+CiAgICA8bW92ZXI+CiAgICAgICAgPG1yb3c+CiAgICAgICAgICAgIDxtbyBtYXhzaXplPSIxIj4oPC9tbz4KICAgICAgICAgICAgPG1uPjc8L21uPgogICAgICAgICAgICA8bW8+LDwvbW8+CiAgICAgICAgICAgIDxtbj4yMTA8L21uPgogICAgICAgICAgICA8bW8gbWF4c2l6ZT0iMSI+KTwvbW8+CiAgICAgICAgPC9tcm93PgogICAgICAgIDxtbz4mI3gyMDNFOzwvbW8+CiAgICA8L21vdmVyPgo8L21hdGg+](data:image/png;base64,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)
Quais das afirmativas abaixo podem ser consideradas característica do pensamento algébrico?
Analise as afirmações em verdadeiras ou falsas e assinale a alternativa que indica a ordem correta de suas respostas de acordo com a leitura de seu livro texto.
( ) Presença de um processo de generalização.
( ) Tentativa de explicar a estrutura de uma situação problema.
( ) Tentativa de descobrir o significado da incógnita.
( ) Percepção de aspectos invariantes em contraste com outros que variam.
( ) Percepção de regularidades.
V F V F V
V V F F V
F V V F V
V V F V F
V V F V V
Qual das relações , pode ser considerada uma relação de equivalência, sendo E= {1, 2, 3, 4}?
R1= {(1, 1); (1, 2); (2, 2); (2, 4); (3, 3); (4, 4); (4, 3)}.
R2= {(1, 1); (1, 2); (2, 4); (3, 3); (4, 4); (3, 2)}.
R3= {(1, 2); (1; 4); (2, 1); (2, 3); (3, 3); (4,1); (3, 2)}.
R4= {(1, 1); (1, 2); (1, 4); (2, 1); (2, 2); (2, 4); (3, 3); (4, 1); (4, 2); (4, 4)}.
R5= {(1, 3); (1, 2); (2, 3); (2, 4); (3, 3); (4, 4)}.
R1
R2
R4
R5
R3
Para responder à questão observe as definições a seguir:
![http://sga.uniube.br/images/uploads/14348/alg%20racionais.JPG](http://sga.uniube.br/images/uploads/14348/alg%20racionais.JPG)
Então, de acordo com as definições dadas, a alternativa que representa o resultado de
(1/2) . (1/3) + (1/4) . (1/3), definidos na classe de equivalência é:
Quais das afirmativas abaixo podem ser consideradas característica do pensamento algébrico?
Analise as afirmações em verdadeiras ou falsas e assinale a alternativa que indica a ordem correta de suas respostas de acordo com a leitura de seu livro texto.
( ) Presença de um processo de generalização.
( ) Tentativa de explicar a estrutura de uma situação problema.
( ) Tentativa de descobrir o significado da incógnita.
( ) Percepção de aspectos invariantes em contraste com outros que variam.
( ) Percepção de regularidades.
V F V F V
V V F F V
F V V F V
V V F V F
V V F V V
Qual das relações , pode ser considerada uma relação de equivalência, sendo E= {1, 2, 3, 4}?
R1= {(1, 1); (1, 2); (2, 2); (2, 4); (3, 3); (4, 4); (4, 3)}.
R2= {(1, 1); (1, 2); (2, 4); (3, 3); (4, 4); (3, 2)}.
R3= {(1, 2); (1; 4); (2, 1); (2, 3); (3, 3); (4,1); (3, 2)}.
R4= {(1, 1); (1, 2); (1, 4); (2, 1); (2, 2); (2, 4); (3, 3); (4, 1); (4, 2); (4, 4)}.
R5= {(1, 3); (1, 2); (2, 3); (2, 4); (3, 3); (4, 4)}.
R1
R2
R4
R5
R3
Para responder à questão observe as definições a seguir:
![http://sga.uniube.br/images/uploads/14348/alg%20racionais.JPG](http://sga.uniube.br/images/uploads/14348/alg%20racionais.JPG)
Então, de acordo com as definições dadas, a alternativa que representa o resultado de
(1/2) . (1/3) + (1/4) . (1/3), definidos na classe de equivalência é:
V F V F V
V V F F V
F V V F V
V V F V F
V V F V V
Qual das relações , pode ser considerada uma relação de equivalência, sendo E= {1, 2, 3, 4}?
R1= {(1, 1); (1, 2); (2, 2); (2, 4); (3, 3); (4, 4); (4, 3)}.
R2= {(1, 1); (1, 2); (2, 4); (3, 3); (4, 4); (3, 2)}.
R3= {(1, 2); (1; 4); (2, 1); (2, 3); (3, 3); (4,1); (3, 2)}.
R4= {(1, 1); (1, 2); (1, 4); (2, 1); (2, 2); (2, 4); (3, 3); (4, 1); (4, 2); (4, 4)}.
R5= {(1, 3); (1, 2); (2, 3); (2, 4); (3, 3); (4, 4)}.
R1
R2
R4
R5
R3
Para responder à questão observe as definições a seguir:
![http://sga.uniube.br/images/uploads/14348/alg%20racionais.JPG](http://sga.uniube.br/images/uploads/14348/alg%20racionais.JPG)
Então, de acordo com as definições dadas, a alternativa que representa o resultado de
(1/2) . (1/3) + (1/4) . (1/3), definidos na classe de equivalência é:
R1
R2
R4
R5
R3