If `A ,B ,A+I ,A+B` are idempotent matrices, then `A B` is equal to `B A` b. `-B A` c. `I` d. `O`

If A,B and A+B are idempotent matrices, then

If B is an idempotent matrix, and A=I-B , then

" 1.If "B" is an idempotent matrix and "A=I-B" then "AB=

If A= {a, b, c, d} andB = {b, c, e} , then A cup B is equal to

If A and B are two matrices such that AB=A, BA=B, then A^25 is equal to (A) A^-1 (B) A (C) B^-1 (D) B

Let A and b are two square idempotent matrices such that ABpm BA is a null matrix, the value of det (A - B) cann vbe equal

If A and B are two matrices such that AB=A and BA=B, then B^(2) is equal to (a) B( b) A(c)1(d)0

if A and B are two matrices such that AB=B and BA=A,then A^(2)+B^(2) is equal to

If A and B are two square matrices such that B=-A^(-1)BA , then (A+B)^(2) is equal to