Question

If A = [(-1,3/2),(-1/2,1/2)], then A3 =

(a) A/4

(b) A/8

(c) I/4

(d) I/8

Answer 1

Correct option (d) I/8

Explanation:

The characteristic equation is

= A/4 + I/8 - A/4 = 1/8