If A is a square matrix such that A2 = A then(1 + A)3 - 7A is equal to – InterviewSolution

1.	If A is a square matrix such that A2 = A then(1 + A)3 - 7A is equal to :(a) A(b) 1 - A(c) 1(d) 3A
Answer» Answer is (a) A

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