$(1+x)^\alpha = 1 +\frac{\alpha} {1!} x +\frac{ \alpha(\alpha-1)}{2!}x^2 +\cdots+ \frac{\alpha(\alpha-1).... (\alpha-k + 1)}{k!}x^k +\cdots$
$\alpha \in\mathbb{ R}$ , bu esitligin dogru oldugunu nasil gosterebilirim. X eleman [0 ,1) ve x eleman (-1,1) icin.