Verify that A2 = I when 
We need to prove that: A2 = I = 
∵ A = 
∴ A2 = 
By matrix multiplication we have-
A2 = 
⇒ A2 = 
∴ A2 = 
Hence Verified
35
Verify that A2 = I when
We need to prove that: A2 = I =
∵ A =
∴ A2 =
By matrix multiplication we have-
A2 =
⇒ A2 =
∴ A2 =
Hence Verified