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Mathematics · 2025 · 1 mark
CBSE 2025 · Region 2 · Set 1 · Q17
If A and B are square matrices of order m such that A^2- B^2=( A - B )( A + B ), then which of the following is always correct?
If A and B are square matrices of order m such that $\displaystyle \mathrm{A}^{2}-\mathrm{B}^{2}=(\mathrm{A}-\mathrm{B})(\mathrm{A}+\mathrm{B})$, then which of the following is always correct?
Official answer
(B)
$\displaystyle \mathrm{AB}=\mathrm{BA}$
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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.