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2Â¥: Originally posted by hylpy at 2017-12-14 14:51:35
µÚ¶þÌ⣺\lim_{x\rightarrow 0}\frac{\int_{0}^{\sqrt{1+x}-1}\ln (1+t)}dt}{\int_{0}^{\frac{x}{2}}\arcsin t}=\lim_{x\rightarrow 0}\frac{\frac{1}{2\sqrt{1+x}}\ln \sqrt{1+x}}{\frac{1}{2}\arcsin \frac{x}{2} ...

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5Â¥2017-12-15 12:42:56
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4Â¥: Originally posted by hylpy at 2017-12-15 08:36:45
µÚ¶þÌ⣺\lim_{x\rightarrow 0}\frac{\int_{0}^{\sqrt{1+x}-1}\ln (1+t)dt}{\int_{0}^{\frac{x}{2}}\arcsin tdt}=\lim_{x\rightarrow 0}\frac{\frac{1}{2\sqrt{1+x}}\ln (\sqrt{1+x})}{\frac{1}{2}\arcsin \frac{x} ...



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