If A and B are square matrices of the same order then (A – B)2 =? A – InterviewSolution

1.

If A and B are square matrices of the same order then (A – B)2 =? A. A2 - 2AB + B2 B. A2 – AB - BA + B2 C. A2 - 2BA + B2 D. none of these

Answer»

Since A and B are square matrices of same order.

(A - B)² = (A- B)(A - B)

= A² - AB - BA+ B²

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