[分析] 一題高微

[cherry770519 (＊桃子＊)]

  Suppose f屬於C([a,b]) 交集 C^1((a,b))

  f(a)=f(b)=0 and lim  f'(x) = lim  f'(x) >0
                  x->a+        x-> b-

   show that f has at lest one zero in (a,b)

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