Latest exam Aptitude Question SOLUTION: 1. Prove that, for square matrices A and B, AB = BA if and only if (A - B)(A + B) = A^2 - B^2 2. Solve the equation XA^2 = A^-1 for X, assuming all matrices involved are inver

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(#M40139670) EXAM Numerical Ability question Keep an EYE

1. Prove that, for square matrices A and B, AB = BA if and only if (A - B)(A + B) = A^2 - B^2

2. Solve the equation XA^2 = A^-1 for X, assuming all matrices involved are inverti

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