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HMMT February

Algebra Difficulty 4.9 AIME Find the answer

Solve x=x−1x+1−1xx=\sqrt{x-\frac{1}{x}}+\sqrt{1-\frac{1}{x}} for xx.

A number or a short expression. Fractions can be typed as 3/2, and spacing doesn't matter.

Solution

1+52\frac{1+\sqrt{5}}{2}.

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