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if-x-1-x-cos-find-x-n-1-x-n-interm-of-

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Question Number 169932 by Mathspace last updated on 12/May/22
if x+(1/x)=cosθ find x^n +(1/x^n ) interm of θ
$${if}\:{x}+\frac{\mathrm{1}}{{x}}={cos}\theta\:\:{find} \\ $$$${x}^{{n}} +\frac{\mathrm{1}}{{x}^{{n}} }\:{interm}\:{of}\:\theta \\ $$

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