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
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![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](/uploads/image/z/4066419-3-9.jpg?t=%E8%AE%BE%E5%87%BD%E6%95%B0%E5%8F%91f%28x%29%E5%9C%A8%5Ba%2Cb%5D%E4%B8%8A%E8%BF%9E%E7%BB%AD%2C%E5%9C%A8%28a%2Cb%29%E5%86%85%E6%9C%89%E4%BA%8C%E9%98%B6%E5%AF%BC%E6%95%B0%2C%E4%B8%94%E6%9C%89f%28a%29%3Df%28b%29%3D0.f%28c%29%3E0%28%E5%85%B6%E4%B8%ADa)
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
由拉格朗日中值定理:
f(a)-f(c)=f'(d1)(a-c),a
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