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MHT CET 2023 Mathematics question

MathematicsMatricesMHT CET 2023

Let , and , if AX = B, then the value of is

Answer: (A)

Solution

gives the system ... (i), ... (ii), ... (iii). From (i), ; substituting in (iii): , so . Then (ii) gives , , and (i) gives . So and

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Question ID VK-094647