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Mathematics · 2023 · 1 mark
CBSE 2023 · Region 2 · Set 2 · Q15
If A is a 2 × 3 matrix such that AB and AB^′ both are defined, then order of the matrix B is
If A is a $\displaystyle 2 \times 3$ matrix such that AB and $\displaystyle \mathrm{AB}^{\prime}$ both are defined, then order of the matrix $\displaystyle B$ is
Official answer
(D)
$\displaystyle 3 \times 3$
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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.