推 iddee:導數的中間值性質 @@ 好像用某個 D 開頭數學家 61.219.178.219 07/19
→ iddee:的名字當成定理 @@ 61.219.178.219 07/19
Suppose that f is real differentiable on [a,b]. Suppose that
f'(a) < r < f'(b). Show that there exists a real c in (a,b)
such that f'(c) = r.
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