Question

1. If A is a 2x2 matrix such that IAI not equal to 0 and lAl=5, write the value of l4Al.​

Answer 1

Step-by-step explanation:

We know if A is matrix of n×n then ∣KA∣=k

n

∣A∣

here order of A is 2

So

∣4A∣=4

2

∣A∣

=16×5

=80