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1. $x + \frac{1}{x} = 6$

Answer: Option A

Explanation:

{(x - \frac{1}{x})}^{2} = {(x + \frac{1}{x})}^{2} - 4 . x . \frac{1}{x} = {(6)}^{2} - 4 = 36 - 4 = 32 A n s w e r : 32

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