If $A=\begin{bmatrix}-2 & 3\\k & 4\end{bmatrix}$ is a singular matrix then value of k is :
Answer & explanation
Correct answer: option 2
The correct answer is Option (2) → $k=-\frac{8}{3}$
$A=\begin{bmatrix}-2 & 3\\k & 4\end{bmatrix}$
A → singular
$|A|=0$
$⇒-8-3k=0$
so $k=-\frac{8}{3}$