If the points (-1, 3, 2), (-4, 2, -2) and (5, , ,5, , , ) are col… - Vidyadip

Question

If the points $(-1, 3, 2), (-4, 2, -2)$ and $(5,\,\,5,\,\,\lambda )$ are collinear, then $\lambda $=

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Answer

d
(d) $\frac{{ - 4 + 1}}{{5 + 4}} = \frac{{2 - 3}}{{5 - 2}} = \frac{{ - 2 - 2}}{{\lambda + 2}}$ or $\lambda + 2 = 12$ or $\lambda = 10$.

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