Gamma gamma gameleon
Calculus
Level
4
Which of the following is/are used in the derivation of
\[(s-1)! \equiv \int_{0}^{\infty} e^{-t}t^{s-1} \, dt?\]
A.\(\ \) Integration by Parts
B.\(\ \) U-substitution
C.\(\ \) Induction
by
Jake Lai