CBSE (Science) Class 12CBSE
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Solution for If a = [(3,1),(-1,2)] A2 – 5a + 7i = O. Hence Find A–1. - CBSE (Science) Class 12 - Mathematics

Question

if A = `[(3,1),(-1,2)]` show that A2 – 5A + 7I = O. Hence find A–1.

Solution

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APPEARS IN

 NCERT Mathematics Textbook for Class 12 Part 1 (with solutions)
Chapter 4: Determinants
Q: 13 | Page no. 132
Solution for question: If a = [(3,1),(-1,2)] A2 – 5a + 7i = O. Hence Find A–1. concept: Adjoint and Inverse of a Matrix. For the courses CBSE (Science), CBSE (Commerce), CBSE (Arts)
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