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[ Last edited by nono2009 on 2009-10-19 at 09:12 ]
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nono2009(½ð±Ò+1,VIP+0):ллר¼Ò£¡ 10-19 07:23
xhuang(½ð±Ò+3,VIP+0):ÔÞ£¬ÒÔºó»¹Çë¶à¶àÖ¸½Ì°¡ 10-19 09:08
F(x)./sqrt(x)dx=F(y^2)./ydy^2=2F(y^2).*ydy
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