Question Details

$If x is a positive real number such that x^{8} + {(\frac{1}{x})}^{8} = 47, then the value of x^{9} + {(\frac{1}{x})}^{9} is$

Options

A

$34 \sqrt{5}$

B

$40 \sqrt{5}$

C

$36 \sqrt{5}$

D

$30 \sqrt{5}$

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