If x-1x-2- then x3-1x3 is

The correct option is A 14 Given, #160; x 1x=2 Since, (x 1x)^3 =x^3 1x^3 3x.1x(x 1x) #160; #160; #160; #160; #160; #160; ...

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Algebraic Identities

If x-1x=2, ...

Question

If $x - \frac{1}{x} = 2$ , then $x^{3} - \frac{1}{x^{3}}$ is

14

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16

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15

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12

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x^{3} - \frac{1}{x^{3}} = 14

x - \frac{1}{x} =

$I f x^{3} - \frac{1}{x^{3}} = 14, t h e n x + \frac{1}{x}$ =

If L = lim x \to \infty \frac{1^{2}}{1 + x^{3}} + \frac{2^{2}}{2 + x^{3}} + . . . + \frac{x^{2}}{x + x^{3}}, then the value of 18 L is

$I f x + \frac{1}{x} = 2, t h e n x^{3} + \frac{1}{x^{3}} =$

x = \frac{1}{x} = - 2

x^{3} + \frac{1}{x^{3}}

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