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Given that $\begin{bmatrix} 1 & x \end{bmatrix} \begin{bmatrix} 4 & 0 \\ -2 & 0 \end{bmatrix} = 0$, the value of $x$ is: |
$-4$ $-2$ $2$ $4$ |
$2$ |
The correct answer is Option (3) → $2$ ## $\begin{bmatrix} 1 & x \end{bmatrix} \begin{bmatrix} 4 & 0 \\ -2 & 0 \end{bmatrix} =0$ $4 - 2x = 0$ $x = 2$ |
