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Mathematics · 2025 · 1 mark
CBSE 2025 · Region 1 · Set 2 · Q9
Let A be a matrix of order m × n and B is a matrix such that A^T B and B A^T are defined. Then, the order of B is:
Let $\displaystyle A$ be a matrix of order $\displaystyle m \times n$ and $\displaystyle B$ is a matrix such that $\displaystyle A^{T} B$ and $\displaystyle B A^{T}$ are defined. Then, the order of B is :
Official answer
(C)
$\displaystyle m \times n$
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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.