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Mathematics · 2023 · 1 mark
CBSE 2023 · Region 3 · Set 3 · Q10
A and B are square matrices of same order. If (A+B)^2=A^2+B^2, then:
$\displaystyle A$ and $\displaystyle B$ are square matrices of same order. If $\displaystyle (A+B)^{2}=A^{2}+B^{2}$, then :
Official answer
(B)
$\displaystyle \mathrm{AB}=-\mathrm{BA}$
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CBSE Class 12 Mathematics past-paper question from the 2023 board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.