Question

    Find the minimum value of sec x + cosec x:

    A 2 Correct Answer Incorrect Answer
    B 3 Correct Answer Incorrect Answer
    C 1 Correct Answer Incorrect Answer
    D 2√2 Correct Answer Incorrect Answer

    Solution

    The minimum value of sec x + cosec x occurs when x = 45° sec 45° + cosec 45° = √2 + √2 = 2√2 Correct option: d

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