(A) If A and B are orthogonal, then AB is (B) If A and B are nilpotent matrices of order r and s and A and B commute, then `(AB)^r` is

Match the following {:(,"Column-I",,"Column-II",),((A),"If A and B are otthogonal, then AB is",(p),"Zero matrix",),((B),"If A and B are nilpotent matrices of order r and s and A and B commute, then "(AB)^(r)"is",(q),"Nilpotent matrix",),((C),"If A is a hermitian matrix such that "A^(2)=0", then A is ",(r),"Unitary matrix",),((D),"If A and B are unitary matrices, then AB is",(s),"Orthogonal",):}

If A and B arę square matrices of same order such that AB = A and BA = B, then

If A and B are symmetric matrices of same order then AB + BA is a :

If A and B are symmetric matrices of same order then AB - BA is a :

If A and B are symmetric matrices of same order, then AB - BA is a :

If A and B are symmetric matrices of same order, then AB-BA is

If A and B are symmetric matrices of same order, then AB - BA is a

If A and B are symmetric matrices of same order , then AB +BA is a ……