The angle between vectors $\vec a$ and $\vec b$ is $\frac{\pi }{6}$. The angle between vectors $ - 3\vec a$ and $ 2\vec b$ is
$\frac{\pi }{3}$
$\frac{\pi }{2}$
$\frac{7\pi }{6}$
$\frac{5\pi }{6}$
$0.4\hat i + 0.8\hat j + c\hat k$ represents a unit vector when $c$ is
If a unit vector is represented by $0.5\hat i + 0.8\hat j + c\hat k$, then the value of ‘$c$’ is
If $A = 3\hat i + 4\hat j$ and $B = 7\hat i + 24\hat j,$the vector having the same magnitude as $B$ and parallel to $A$ is
What is vector ? How it can be represented ?
If $\vec P = \vec Q$ then which of the following is NOT correct
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