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Here we are providing NCERT Exemplar Solutions for all the questions of Class 12 Mathematics Chapter 3 – Matrices. These questions are solved by experienced subject experts of Mathematics in the most ...

Solution: det (A) = −5, and for n×n matrix adj (A) has determinant (det A)^ (n−1). Here n = 3, so det (B) = (−5)^ (2) = 25. For feedback or story ideas, reach us at [email protected] ...