MCQ
If $A=\left[\begin{array}{ll}3 & 9 \\ 7 & 2\end{array}\right]$ and $I$ is an identity matrix of order 2 , then the value of $A+5 I$ is:
- A$\left[\begin{array}{cc}3 & 14 \\ 12 & 2\end{array}\right]$
- B$\left[\begin{array}{ll}3 & 9 \\ 7 & 2\end{array}\right]$
- ✓$\left[\begin{array}{ll}8 & 9 \\ 7 & 7\end{array}\right]$
- D$\left[\begin{array}{cc}8 & 14 \\ 12 & 7\end{array}\right]$