Let A = 
Show that A is inevitable. Find adj. A and A Also verify that AA^–1 = A^–1 A = I.

Verify AA^–1 = A^–1 A = I where

If   then A³ = A^–1 What is adj. A ?

If  find A^–1 and show that A^–1 = A².

215.

If   show that A⁴ = I. Hence find A^–1

If A =   prove that A^–1 = A^–2 – 6 A + 111.

If  Find A^–1 and hence prove that A² – 4A – 5 I = O.

For the matrix  show that A³ + 6A² + 5A + 11 I = 0. Hence, find A^–1.

If 
verify that A¹ – 6A² + 9A – 4 I = O and hence find A^–1.

Compute (AB)^-1  where