Q61 of 146 Page 52

The matrix is a

Let A =

Clearly,

A’ =

As, A^T = -A

∴ It is skew - symmetric matrix.

∴ Option(C) is the correct answer.

If matrix , where a_ij = 1 if i ≠ j

a_ij = 0 if i = j, then A² is equal to

The matrix is a

If A is matrix of order m × n and B is a matrix such that AB’ and B’A are both defined, then order of matrix B is

If A and B are matrices of same order, then (AB’ – BA’) is a