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    3. Quantitative Aptitude
    4. Algebra
    5. If 'a' = 2 + √3, then find the value of [a2 - (1/a2)].

    Question

    If 'a' = 2 + √3, then find the value of

    [a2 - (1/a2)].
    A 8√3 Correct Answer Incorrect Answer
    B 4√3 Correct Answer Incorrect Answer
    C 2√3 Correct Answer Incorrect Answer
    D 6√3 Correct Answer Incorrect Answer

    Solution

    'a' = 2 + √3

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    Using, a2 - b2 = (a + b) (a - b)

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