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Math Chapter Wise question with answer

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Question #46,186
Math Chapter Wise Matrices And Determinants English MCQ OAVS TGT 2021

Q.Let A be 3 × 3 matrix satisfying 0 2 1 2 A 1 3,A 1 1 and 0 7 0 2 1 5 A 1 9, 1 2 then the sum of the diagonal entries of A is:

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