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f(x)在[a,b]上连续,在(a,b)内有二阶导数,且f(a)=f(b)=0,f(c)>0(a
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f(x)在[a,b]上连续,在(a,b)内有二阶导数,且f(a)=f(b)=0,f(c)>0(a
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答案和解析
f(a) = 0 f(c)>0,there exist m1,such that
f'(m1)> 0 a< m1< c
f(c)>0,f(b) =0,there exist m2,such that
f'(m2)
f'(m1)> 0 a< m1< c
f(c)>0,f(b) =0,there exist m2,such that
f'(m2)
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