CUET Preparation Today
If $\begin{bmatrix} x & 2 & 0 \end{bmatrix} \begin{bmatrix} 5 \\ -1 \\ x \end{bmatrix} = \begin{bmatrix} 3 & 1 \end{bmatrix} \begin{bmatrix} -2 \\ x \end{bmatrix}$, then value of $x$ is: |
$-1$ $0$ $1$ $2$ |
$-1$ |
The correct answer is Option (1) → -1 ## We have, $(x)(5) + (2)(-1) + (0)(x) = (3)(-2) + (1)(x)$ $5x - 2 = -6 + x$ $4x = -4$ $x = -1$ |
