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    Question

    If тИЪc + (1/тИЪc) = 7, then find the value of c +

    (1/c).
    A 45 Correct Answer Incorrect Answer
    B 47 Correct Answer Incorrect Answer
    C 49 Correct Answer Incorrect Answer
    D 51 Correct Answer Incorrect Answer

    Solution

    Given, тИЪc + (1/тИЪc) = 7

    On squaring both sides:
    (тИЪc + (1/тИЪc)) 2 = 72
    Expanding:
    c + 2 + (1/c) = 49
    Simplifying:
    c + (1/c) + 2 = 49
    Subtracting 2 from both sides:
    c + (1/c) = 47

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