Respostas AVA

GEOMETRIA ANALÍTICA

Determine respectivamente os valores de a e b para que os pontos A (2, a, 3), B (2, 1, - 5) e C (b, -3, 4) sejam colineares.

$\displaystyle{a}=\frac{{-{23}}}{{{9}}}$    $\displaystyle{b}={2}$
$\displaystyle{a}=\frac{{-{23}}}{{{9}}}$    $\displaystyle{b}=-{2}$
$\displaystyle{a}={0}$ $\displaystyle{b}={2}$
$\displaystyle{a}=\frac{{-{23}}}{{{9}}}$ $\displaystyle{b}={0}$
$\displaystyle{a}=\frac{{{23}}}{{{9}}}$    $\displaystyle{b}={2}$