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    Question

    For A = [[2,3],[-1,4]], find

    det(2A).
    A 11 Correct Answer Incorrect Answer
    B 44 Correct Answer Incorrect Answer
    C 66 Correct Answer Incorrect Answer
    D 88 Correct Answer Incorrect Answer

    Solution

    ATQ, det(A) = 11 det(2A) = 4×11 = 44

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