设函数发f(x)在[a,b]上连续,在(a,b)内有二阶导数,且有f(a)=f(b)=0.f(c)>0(其中a

设函数发f(x)在[a,b]上连续,在(a,b)内有二阶导数,且有f(a)=f(b)=0.f(c)>0(其中a 设函数f(x)在[a,b]上连续,在(a,b)内有二阶导数,且有f(a)=f(b)=0,f(c)>0(a 设函数f(x)在[a,b]上有连续导数,且f(c)=0,a 设函数f(x)在区间[a,b]上连续,在区间（a,b)内有二阶导数,如果f(a)=f(b)且存在c 设f（x）在[a,b]上连续,在（a,b）内二阶可导,且f(a)f(b)＜0,f'(c)=0.a 设函数f(x)在[a,b]上连续,在(a,b)可导,且f(a)*f(b)>0,f(a)*f((a+b)/2) 【中值定理证明题】设函数f(x)在[a,b]上连续,在(a,b)上可导,且f(a)f(b)>0,f(a)f((a+b)/ 设函数f(X)在区间[a,b]上连续,且f(a)b.证明存在c属于(a,b),使得f（c)=c 设f(x)在[a,b]上有连续的导数,且f(x)不恒等于0,f(a)=f(b)=0,证明∫(a,b)xf(x)f'(x) 设函数f(x)在[a,b]上连续,在(a,b)内可导且f'(x) 设f‘(x)在[a,b]上连续,且f(a)=0,证明:|∫b a f(x)dx| 设f(x)在[a,b]上有连续二阶导函数,且f(a)=f(b)=0,证明∫[a,b][2f(x)-(x-a)(x-b)f