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    Question

    If (a2 + 1/a2) = 38, then find

    the value of (a3 - 1/a3).
    A 228 Correct Answer Incorrect Answer
    B 234 Correct Answer Incorrect Answer
    C 240 Correct Answer Incorrect Answer
    D 216 Correct Answer Incorrect Answer

    Solution

    Since, (a2 + 1/a2) = 38 So, a - 1/a = √ {38 - 2} = 6 So, (a3 - 1/a3) = 63 + 3 * 6 = 216 + 18 = 234

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