MCQ
यदि $A=\left[\begin{array}{ll}a & b \\ b & a\end{array}\right]$ और $A^2=\left[\begin{array}{ll}\alpha & \beta \\ \beta & \alpha\end{array}\right]$ तब
- A$\alpha=a^2+b^2, \beta=a b$
- ✓$\alpha=a^2+b^2, \beta=2 a b$
- C$\alpha=a^2+b^2, \beta=a^2-b^2$
- D$\alpha=2 a b, \beta=a^2+b^2$