Cmr: $\dfrac{a}{a+b}+\dfrac{b}{b+c}+\dfrac{c}{c+a} \ge \dfrac{7}{5}$
@CTV edit: Bạn chú ý gõ TV và đánh LaTeX trên diễn đàn. Bạn học LaTeX ở đây
Edited by TIG Messi, 19-03-2007 - 21:54.
Edited by TIG Messi, 09-03-2007 - 20:40.
Edited by Huyptit, 09-03-2007 - 21:24.
Edited by TIG Messi, 12-03-2007 - 23:29.
Edited by supermember, 11-03-2007 - 16:21.
Edited by TIG Messi, 19-03-2007 - 21:57.
Edited by NAPOLE, 19-03-2007 - 08:24.
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