Question Error Report

Thank you for reporting, we will resolve it shortly

Back to Question

Q. If $=\begin{bmatrix}1 & 0 \\ 1 & 0\end{bmatrix}\, \&\, B=\begin{bmatrix}273 & 141 \\ -31.1 & \frac{5132}{9}\end{bmatrix}$ then $|A . B|=$

KCETKCET 2022

Solution:

use $| A \cdot B |=| A | \cdot| B |=0$
$(\because| A |=0)$