Telescoping Cubes
Calculus
Level
3
\[\large \displaystyle \prod_{n=2}^{\infty} \dfrac {n^3-1}{n^3 + 1}\]
If the value of the above expression can be expressed as \( \dfrac ab\), where \(a\) and \(b\) are coprime positive integers, find \(a+b\).
by
Sharky Kesa