Question

A+I = [1/-1/-2 3/1/3 4/3/1] find
(A+I) (A-I)

Answer 1

Answer:

23-Jan-2020 — Example 24 If A = [□8( 1&3&3@1&4&3@1&3&4)], then verify that A adj A = |A| I. Also find A–1. Solving L.H.S A (adj A) First ...