#### Question

If A is a square matrix such that A^{2} = I, then find the simplified value of (A – I)^{3} + (A + I)^{3} – 7A.

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Solution for question: If A is a square matrix such that A2 = I, then find the simplified value of (A – I)3 + (A + I)3 – 7A. concept: Types of Matrices. For the courses CBSE (Arts), CBSE (Commerce), CBSE (Science)