Question

The value of $a_{22}-a_{13},$ in the matrix $A=\left[\begin{array}{ccc}1& 2& 0\\ -2& 3& 4\\ 3& 2& -1\end{array}\right],$ $($where $a_{ij}$ is the representation of element in the matrix$A)$ is

• A. 3.0
• B. 3
• C. 3.00

Answer 1

Answer: (A), (B), (C)

We have,
$A=\left[\begin{array}{ccc}1& 2& 0\\ -2& 3& 4\\ 3& 2& -1\end{array}\right]$
$\therefore a_{22}-a_{13}=3-0=3$