[m](1+x)^{-9}=1-9х + \frac{(-9)(-9-1)}{2!}x^2+\frac{(-9)(-9-1)(-9-2)}{3!}x^3+\frac{(-9)(-9-1)(-9-2)(-9-3)}{4!}x^4 + ...[/m]
б)Подставляем в формулу m=1/6
[m](1+x)^{\frac{1}{6}}=1+\frac{1}{6}х + \frac{\frac{1}{6}(\frac{1}{6}-1)}{2!}x^2+\frac{\frac{1}{6}(\frac{1}{6}-1)(\frac{1}{6}-2)}{3!}x^3+\frac{\frac{1}{6})(\frac{1}{6}-1)(\frac{1}{6}-2)(\frac{1}{6}-3)}{4!}x^4 + ...[/m]
считайте...