Seven seas in this world!
Calculus
Level
4
\[ \large \int_0^\infty \dfrac{x^7}{1-e^x} \, dx\]
If the integral above is equal to \( -\frac AB \pi^C\), where \(A,B\) and \(C\) are coprime positive integers with \(A,B\) coprime, find \(A+B+C\).
by
Aditya Kumar