CBSE 2025 · Region 1 · Set 3 · Q11 · 1 mark
A system of linear equations is represented as $\displaystyle \mathrm{AX}=\mathrm{B}$, where A is coefficient matrix, X is variable matrix and B is the constant matrix. Then the system of equations is
Official answer
From CBSE’s own marking scheme for this paper.
(D)
May or may not be consistent if $\displaystyle |\mathrm{A}|=0$ and (adj A) B = $\displaystyle 0$
MatricesInvertible MatricesUnderstandmcqmedium
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CBSE Class 12 Mathematics past-paper question from the 2025board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.