设 $f:\bbR\to\bbR$ 二阶可微, 且 $$\bex f(0)=2,\quad f'(0)=-2,\quad f(1)=1. \eex$$ 试证: $$\bex \exists\ \xi\in (0,1),\st f(\xi)\cdot f'(\xi)+f''(\xi)=0. \eex$$
相关文章
- Mathematics:X-factor Chains(POJ 3421)
- [Everyday Mathematics]20150101
- [Everyday Mathematics]20150201
- [Everyday Mathematics]20150122
- [Everyday Mathematics]20150224
- [Everyday Mathematics]20150301
- [Everyday Mathematics]20150228
- [Everyday Mathematics]20150302
- [Everyday Mathematics]20150215
- 2016_ThinkinG of everyDay