If the matrices A, B , (A+B) are non-singular then [ A ( A+B)-1 B] -1 is equal to
A+B
A-1 + B-1
A(A+B)-1
None of these
Symmetric
non-singular
singular
skew-symmetric
If [ 1 2 3] A = [ 4 5 ], the order of matrix A is
3 x 2
3 x 1
2 x 3
2 x 1
is
If A and B are two matrices such that AB = B and BA = A, then A2 + B2 =
2AB
2BA
A + B
AB
If A and B are two matrices such that AB =B and BA = A , then A2+B2=
