设 f(x)在〔a,b〕上具有一阶连续导数,且｜f‘ (x)｜≤M,f(a)=f(b)=0,求证∫(a,b)f(x)dx

设 f(x)在〔a,b〕上具有一阶连续导数,且｜f‘ (x)｜≤M,f(a)=f(b)=0,求证∫(a,b)f(x)dx 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] 上连续,且f(x)>0.求证:∫(a,b)f(x)dx*∫(a,bdx/f(x)≥(b-a)^ 设函数f(x)在闭区间[a,b]上具有二阶导数,且f"(x)＞0,证明∫(a,b)f(x)dx＞f( 若f(x)在[a,b]上连续,在(a,b)内可导,|f'(x)|小于等于M,f(a)=0,求证:f(x)dx在[a,b] 求大神证明:设f(x)在区间[a,b]上有一阶连续导数,记max|f(x)|=M(x归属于[a,b]),试证M 设f(x)在[a,b]上具有二阶导数 且f(a)=f(b)=0 f'(a)f'(b)>0 证明 至少存在一点 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f(x)在[a,b]上可导,且f'(x)≤M,f(a)=0,求证∫(a,b)f(x)dx≤M/2(b-a)^2 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f(x)在[a,b]上连续,且f(b)=a,f(a)=b,证明∫(上b下a)f(x)f'(x)dx=1/2(a 设f(x)在区间[a,b]上具有二阶导数,且f'(a)f'(b)>0试证明