A calculus problem by Kïñshük Sïñgh
Calculus
Level
4
\[\int _{ \infty }^{ 0 }{ \frac { x{ e }^{ -x } }{ \sqrt { 1-{ e }^{ -2x } } } } \, dx = \, ? \]
Clarification: The lower limit is indeed \(\infty\), and not \( -\infty\).
by
Kïñshük Sïñgh