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Q.If AA is a square matrix such that A(adj A)=5AA(\text{adj } A) = 5A, then

a
∣A∣=5|A| = 5 or 00
b
∣A∣=±5|A| = \pm 5
c
∣A∣=25|A| = 25
d
A=5IA = 5I

Correct Answer: Option A

The correct solution involves applying the fundamental concept to derive the final value step by step...

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