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4Â¥: Originally posted by hank612 at 2013-12-03 02:37:34
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2Â¥: Originally posted by hank612 at 2013-12-02 02:59:10
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±¿ÐÜ~(feixiaolin´ú·¢): ½ð±Ò+5, SIMPLE,but profundity. 2013-12-03 06:38:40
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3Â¥: Originally posted by ±¿ÐÜ~ at 2013-12-02 21:36:38
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Äã²»ÊÇÓиöºãµÈʽô? ×ó±ßÊÇ f(x)=(x-t1)(x-t2), ËùÒÔx^2 µÄϵÊý¾ÍÊÇ1 °¡.
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