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MHT CET 2024 Mathematics question

MathematicsMatricesMHT CET 2024

If and and if matrix is the inverse of matrix , then the value of is

Answer: (C)

Solution

If then . Row 1 of times column 1 of : . Row 1 times column 3: . Row 2 times column 1: . Check with other entries: row 2 times column 2 gives (so

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Question ID VK-095055