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
    $\frac{3 \pi}{2}$

Answer

स्वप्रयत्न

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