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Mathematics · 2025 · 1 mark
CBSE 2025 · Region 5 · Set 3 · Q3
If A = kB, where A and B are two square matrices of order n and k is a scalar, then:
If $\displaystyle \mathrm{A}=\mathrm{kB}$, where A and B are two square matrices of order n and k is a scalar, then :
Official answer
(B)
$\displaystyle |\mathrm{A}|=\mathrm{k}^{\mathrm{n}}|\mathrm{B}|$
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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.