If and f(x) = x2 – 4x + 1, find f(A).

Given, f(x) = x2 – 4x + 1,f(A) = A2 – 4A + I,f(A) = f(A) = f(A) =

Q20 of 124 Page 213

If and f(x) = x² – 4x + 1, find f(A).

Given,

f(x) = x² – 4x + 1,

f(A) = A² – 4A + I,

f(A) =

If and find a matrix X such that

3 A – 2B + X = O.

If show that A’ A = I.

If A and B are symmetric matrices of the same order, show that (AB – BA) is a skew symmetric matrix.

If the matrix A is both symmetric and skew-symmetric, show that A is a zero matrix.