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  • Provide Solutio for RD Sharma Class 12 Chapter 6 Adjoint and Inverse Matrix Exercise Fill in the blanks Question 13

Provide Solutio for RD Sharma Class 12 Chapter 6 Adjoint and Inverse Matrix Exercise Fill in the blanks Question 13

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Answer  \rightarrow 10

Hint  \rightarrow A\left ( adjA \right )=\left | A \right |. I

Given  \rightarrow A  is a square matrix such that \rightarrow A\left ( adjA \right )=10.I

Explanation  \rightarrow A^{-1}=\frac{1}{|A|}(\operatorname{adj} A)

                |A|=A(\operatorname{adj} A)

Hence,A=10

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