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If a²+1/a²=27 then, a-1/a=?

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If a²+1/a²=27 then, a-1/a=?

    • Posted by Mayank Sharma 5 years, 11 months ago

    CBSE > Class 08 > Mathematics
    • 1 answers

    Shiras Mohamed 5 years, 11 months ago

    (a-1/a)2 + 2 = 27

    a - 1/a = 27 - 2 = 25

    a - 1/a = {tex}{/tex}5 or -5

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