Question

Which of the following is INCORRECT ? (Symbol ^ for power) * 1 point If A is a skew- symmetric matrix and n is a positive integer, then A^n is always symmetric If A and B are two matrices such that AB=B and BA =A, then A^2 +B^2 = A+B If A and B are two matrices such that AB=0 and then IAI =0, or IBI = 0. Option 4

Answer 1

Answer:

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