MCQ
यदि $A =\left[\begin{array}{cc}\cos \alpha & -\sin \alpha \\ \sin \alpha & \cos \alpha\end{array}\right]$ तो $A + A ^1= I$, यदि $\alpha$ का मान है
- A$\frac{\pi}{6}$
- B$\frac{\pi}{3}$
- C$\pi$
- D$\frac{3 \pi}{2}$
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.