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  4. If [-1 3 4 -5 0 2][1 2 0 7]=[-1 19 α -27 0 14], then the value of α is

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Q. If $\begin{bmatrix}-1 & 3 \\ 4 & -5 \\ 0 & 2\end{bmatrix}\begin{bmatrix}1 & 2 \\ 0 & 7\end{bmatrix}=\begin{bmatrix}-1 & 19 \\ \alpha & -27 \\ 0 & 14\end{bmatrix}$, then the value of $\alpha$ is

KEAMKEAM 2020

Solution:

Correct answer is (b) 4