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    Question

    Let {x + (1/x)} = 4, then Determine the value of {x┬▓ +

    (1/x┬▓)}
    A 12 Correct Answer Incorrect Answer
    B 14 Correct Answer Incorrect Answer
    C 10 Correct Answer Incorrect Answer
    D 18 Correct Answer Incorrect Answer

    Solution

    ATQ,

    Given; {x + (1/x)} = 4

    On squaring both sides, we have;

    {x + (1/x)} ┬▓ = 4┬▓

    Or, {x┬▓ + (1/x) ┬▓ + 2 ├Ч x ├Ч (1/x)} = 16

    So, {x┬▓ + (1/x) ┬▓} = 14

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