Algebra

Quantitative Aptitude (CGL)

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If $x^{2}-\sqrt{11x}+1=0$ , then $\left ( x^{3}+x^{-3} \right )=$

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SSC CGL 17th August 2021 Shift-2

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$8\sqrt{11}$

$10\sqrt{11}$

$4\sqrt{11}$

$7\sqrt{11}$

Explanation:

$8\sqrt{11}$

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