MCQ
Which of the following is/are correct?
Statement (A): If $A=\left[\begin{array}{rr}3 & 1 \\ -1 & 2\end{array}\right]$, then $A ^2=\left[\begin{array}{rr}8 & -5 \\ 5 & 3\end{array}\right]$
Statement (B): If $A=\left[\begin{array}{rr}3 & 1 \\ -1 & 2\end{array}\right], B=\left[\begin{array}{ll}5 & x \\ 1 & 0\end{array}\right]$ and $A^2=B$, then the value of $x$ is 5 .
Statement (C): For matrix multiplication, the number of columns in the first matrix must be equal to the number of rows in the second matrix.
Statement (A): If $A=\left[\begin{array}{rr}3 & 1 \\ -1 & 2\end{array}\right]$, then $A ^2=\left[\begin{array}{rr}8 & -5 \\ 5 & 3\end{array}\right]$
Statement (B): If $A=\left[\begin{array}{rr}3 & 1 \\ -1 & 2\end{array}\right], B=\left[\begin{array}{ll}5 & x \\ 1 & 0\end{array}\right]$ and $A^2=B$, then the value of $x$ is 5 .
Statement (C): For matrix multiplication, the number of columns in the first matrix must be equal to the number of rows in the second matrix.
- AOnly A and B are correct
- ✓Only B and C are correct
- COnly A and C are correct
- DAll A, B and C are correct