MCQ
यदि $A=\left[\begin{array}{ll}a & b \\ c & d\end{array}\right]$ तब $A^2=$
- A$\left[\begin{array}{ll}a^2 & b^2 \\ c^2 & d^2\end{array}\right]$
- ✓$\left[\begin{array}{ll}a^2+b c & a b+b d \\ a c+c d & b c+d^2\end{array}\right]$
- Cअस्तित्व नहीं है
- Dइनमें कोई नहीं