Choose the correct:  If A is square matrix such that              A2= A, then (I + A)³ – 7 A is equal to(A) A                                                        (B) I – A                                                        (C) I                                                          (D) 3A

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If A is square matrix such that              A2= A, then (I + A)³ – 7 A is equal to
(A) A                                                        (B) I – A                                                        (C) I                                                          (D) 3A

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