alleryVectors $\vec a = \hat i - 2\hat j + 3\hat k$ and $\vec b = 3\hat i - 6\hat j + 9\hat k$ are:
APerpendicular
BEqual
CLinearly independent (non-collinear)
DLinearly dependent (collinear)
Answer & Solution
Correct answer: D. Linearly dependent (collinear)
$\vec b = 3\vec a$, so $\vec b$ is a scalar multiple of $\vec a$.
They are linearly dependent, i.e. collinear.
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