CUET Preparation Today
CUET
-- Mathematics - Section B1
Matrices
If A is a singular matrix, then adj A is
non-singular
singular
symmetric
not defined
We have, $|A| = 0$.
Let A be a square matrix of order n. Then,
$|adj\, A|=|A|^{n-1}$
$⇒|adj\, A|= 0$
$⇒adj\, A$ is a singular matrix.