If (a-1 a )=5, find the values of : (a^3+1 a^3 ). - Vidyadip

Question

If $\left(a-\frac{1}{a}\right)=\sqrt{5}$, find the values of : $\left(a^3+\frac{1}{a^3}\right)$.

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Answer

$\pm 18$

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