Check sibling questions
Class 12
Solutions of Sample Papers and Past Year Papers - for Class 12 Boards

If A = [3, 1   -1, 2], show that A 2 − 5A + 7I = O. Hence find A −1 .


This question is exactly same as Ex 4.5, 13 of Chapter 4 Class 12 in the NCERT Book.

Please check the answer and video here

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