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Mathematics · 2023 · 1 mark
CBSE 2023 · Region 1 · Set 2 · Q16
If |(A^-1)/2|=1/(k | A |), where A is a 3 × 3 matrix, then the value of k is:
If $\displaystyle \left|\frac{\mathrm{A}^{-1}}{2}\right|=\frac{1}{\mathrm{k}|\mathrm{A}|}$, where A is a $\displaystyle 3 \times 3$ matrix, then the value of k is :
Official answer
(B)
$\displaystyle 8$
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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.