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不一定成立.函數f(x)和F(x)滿足下列條件:(1)x→a時,lim f(x)=0,lim F(x)=0;(2)在點a的某去心鄰域內f(x)與F(x)都可導,且F(x)的導數不等於0;(3)x→a時,lim(f'(x)/F'(x))存在或為無窮大則x→a時,lim(f…
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