If A is a non- singular matrix, then A(adj A) = - Vidyadip

MCQ

If $ A $ is a non- singular matrix, then $ A(adj A) =$

A
$A$
B
$I$
✓
$|A|I$
D
$|A{|^2}I$

✓

Answer

Correct option: C.

$|A|I$

c
(c)$A(adj\,A) = A.{A^{ - 1}}|A| = |A|\,I$.

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