A) \[\pi \]
B) \[\frac{\pi }{2}\]
C) \[\frac{\pi }{4}\]
D) 0
Correct Answer: C
Solution :
\[|\mathbf{a}\times \mathbf{b}|=(\mathbf{a}.\mathbf{b})\Rightarrow ab\sin \theta =ab\cos \theta \] \[\Rightarrow \tan \theta =\frac{ab}{ab}=1\Rightarrow \theta =\frac{\pi }{4}\].
You need to login to perform this action.
You will be redirected in
3 sec
