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    Question

    The minimum value of 3 sin2

    θ + 4 cos2 θ is
    A 3 Correct Answer Incorrect Answer
    B 8 Correct Answer Incorrect Answer
    C 4 Correct Answer Incorrect Answer
    D 2 Correct Answer Incorrect Answer

    Solution

    The minimum value of asin 2 θ + bcos 2 θ is = Lesser value between a & b. So the minimum value of 3 sin 2 θ + 4 cos 2 θ is = Lesser value between 3 & 4 = 3

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