A) \[\text{3}0{}^\circ \]
B) \[\text{45}{}^\circ \]
C) \[\text{6}0{}^\circ \]
D) \[\text{9}0{}^\circ \]
Correct Answer: B
Solution :
\[|\vec{A}\times \vec{B}|\,=\vec{A}.\vec{B}\]Þ\[AB\sin \theta =AB\cos \theta \]Þ\[\tan \theta =1\] \ \[\theta =45{}^\circ \]You need to login to perform this action.
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