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Let \( A \) be a square matrix of order \( 3 \times 3 \), then \( |5 A|= \)
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Verified Answer
The correct answer is:
\( 125|A| \)
We know that, for \( n \times n \) matrix \( |k A|=k^{n}|A| \).
So, for \( 3 \times 3 \) matrix is
\( |5 A|=5^{3}|A|=125|A| \)
So, for \( 3 \times 3 \) matrix is
\( |5 A|=5^{3}|A|=125|A| \)
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