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    Question

    Find the maximum value of (9sin A + 12cos

    A).
    A √144 Correct Answer Incorrect Answer
    B √200 Correct Answer Incorrect Answer
    C √225 Correct Answer Incorrect Answer
    D √300 Correct Answer Incorrect Answer

    Solution

    Maximum value of (asin P + bcos P) = √(a² + b²)
    Here, 'a' = 9 and 'b' = 12
    Therefore, required value = √(9² + 12²) = √(81 + 144) = √225

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