If A and B are two matrices of order 3 such that `AB=O` and `A^(2)+B=I`, then tr. `(A^(2)+B^(2))` is equal to ________.

If A and B are two matrices such that AB=B and BA=A, then A^(2)+B^(2)=

If A and B are two square matrices of the same order such that AB=B and BA=A , then A^(2)+B^(2) is always equal to

A and B are two matrices of same order such that AB=A and BA=B. Show that A^(2)+B^(2)=A+B

If A and B are two matrices such that AB=B and BA=A , then A^2+B^2=

If A and B are two matrices such that AB=B and BA=A , then A^2+B^2=

Let A and B are two non - singular matrices of order 3 such that A+B=2I and A^(-1)+B^(-1)=3I , then AB is equal to (where, I is the identity matrix of order 3)

Let A and B are two non - singular matrices of order 3 such that A+B=2I and A^(-1)+B^(-1)=3I , then AB is equal to (where, I is the identity matrix of order 3)

If A and B are two square matrices such that AB=A and BA=B , then A^(2) equals