It's really a matter of simplification

Algebra Level 3

$\large \frac{\left(x+\dfrac{1}{x}\right)^6 - \left(x^6 + \dfrac{1}{x^6}\right) - 2}{\left(x+\dfrac{1}{x}\right)^3 + \left(x^3+\dfrac{1}{x^3}\right)}$

Find the minimum value of the expression above for all $$x>0$$.

Note: This particular problem appeared in the 1998 Putnam Math Competition.
×

Problem Loading...

Note Loading...

Set Loading...