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CUET
-- Mathematics - Section B2
Algebra
If A $=\begin{bmatrix}0 & 3 \\2 & -5\end{bmatrix}$ and $kA=\begin{bmatrix}0 & 4a \\-8 & 5b\end{bmatrix}$ , then which of the following is true ?
$k=7, a=2$
$k=-4, a=-3$
$k=4, a=-3 $
$k=-4, a=8$
