Question

2. A square matrix A of order 3, has|A| = 5, find |A. adj Al.​

Answer 1

Step-by-step explanation:

Given A is a matrix of order 3

⟹∣A∣=5

⟹∣adjA∣=∣A∣

(3−1)

=∣A∣

2

=5

2

=25

∣A adjA∣=∣A∣×∣adjA∣=5×25=125