Question Id : 15729 |
Context : JEE Main 2019 (8 April Morning Shift)
Let $A = \left( {\matrix{
{\cos \alpha } & { - \sin \alpha } \cr
{\sin \alpha } & {\cos \alpha } \cr
} } \right)$, ($\alpha $ $ \in $ R)
such that ${A^{32}} = \left( {\matrix{
0 & { - 1} \cr
1 & 0 \cr
} } \right)$ then a value of $\alpha $
🎥 Video solution / Text Solution of this question is given below:
4