Q16 of 124 Page 213

If and find a matrix X such that A + 2B + X = O.

Given,

We need to a matrix X such that, A +2B + X = 0

We have, X = -(A + 2B),

If show that (A + A’) is symmetric

If and show that (A – A’) is skew-symmetric

If and find a matrix X such that

3 A – 2B + X = O.

If show that A’ A = I.