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Mathematics · 2025 · 1 mark
CBSE 2025 · Region 5 · Set 1 · Q8
If [4+ x, x -1; -2, 3] is a singular matrix, then the value of x is:
If $\displaystyle \left[\begin{array}{cc}4+\mathrm{x} & \mathrm{x}-1 \\ -2 & 3\end{array}\right]$ is a singular matrix, then the value of x is :
Official answer
(C)
$\displaystyle -2$
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CBSE Class 12 Mathematics past-paper question from the 2025 board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.