If x 2-1 x 2-102- then x-1 x-a 8b 10c 12d 13

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Expansion of (x^2 - y^2)

If x 2+1 x 2=...

Question

If $x^{2} + \frac{1}{x^{2}} = 102$ , then $x - \frac{1}{x}$ =

(a) 8

(b) 10

(c) 12

(d) 13

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Solution

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