If A and B are two `nxxn` matrices such that `|A|=|B|` then (A) `A\'=A` (B) `A=B` (C) `A\'=B\'` (D) none of these

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=A, BA=B, then A^25 is equal to (A) A^-1 (B) A (C) B^-1 (D) B

If A and B are two matrices such that A+B and AB are both defind, then

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

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

If A and B are two square matrices of the same order, then A+B=B+A.

6.If A and B are matrices with AB=0 and BA=0 ,then a) A=0 or B=0 b) Either A=0 or B=0 c) A=0 and B=O d) None of these.

If A,B and C be the three square matrices such that A=B+C then det A is necessarily equal to (A) detB (B) det C (C) det B+detC (D) none of these

If A and B are two square matrices of same order satisfying AB=A and BA=B, then B^2 is equal to (A) A (B) B (C) A^2 (D) none of these

Let A, B and C are nxxn matrices such that |A|-2, |B|=3 and |C|=5 . If |(2A)^(2)(3B)(5C)^(-1)|=(1728)/(125) , then the value of n is equal to