Question

If A then adjoint of matrix A is​

Answer 1

Answer:

Let A be of the order n×n

Since A adjA=∣A∣I

Therefore =∣A.adjA∣=∣A∣

n

=∣A∣∣adjA∣=∣A∣

n

⇒∣adjA∣=∣A∣

n−1

q

Since A is singular then ∣A∣=0

∣adjA∣=0 so adj A is also singular.

Step-by-step explanation:

please mark brainalist follow me