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Mathematics · 2024 · 1 mark
CBSE 2024 · Region 1 · Set 3 · Q6
If matrices A and B are of order 1 × 3 and 3 × 1 respectively, then the order of A^′ B^′ is:
If matrices A and B are of order $\displaystyle 1 \times 3$ and $\displaystyle 3 \times 1$ respectively, then the order of $\displaystyle \mathrm{A}^{\prime} \mathrm{B}^{\prime}$ is :
Official answer
(D)
$\displaystyle 3 \times 3$
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CBSE Class 12 Mathematics past-paper question from the 2024 board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.