Math, asked by randy007, 11 months ago

Explain this by normal method frnds..

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Answered by Anonymous

1

(X + 1/X)^2 = x^2 + 1/x^2 +2

(X - 1/X)^2 = (X + 1/X) ^2 - 4

(X - 1/X) = sqrt (8 - 4) = sqrt4 = +2 and -2

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