If and (A + B)2 = A2 + B2, then values of a and b are

As, A2 + B2 = (A+B)2a2 = 1 & b = 4a = ± 1Hence Option (B) is the correct answer.

Q13 of 307 Page 6

If and (A + B)² = A² + B², then values of a and b are

As, A² + B² = (A+B)²

a² = 1 & b = 4

a = ± 1

Hence Option (B) is the correct answer.

If , then Aⁿ (where n ∈ N) equals

If and and AB = I₃, then x + y equals

If is such that A² = I, then

If S = [s_ij] is a scalar matrix such that s_ij = k and A is a square matrix of the same order, then AS = SA = ?