1 số bài bdt

T

tiger3323551

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B

bigbang195

cho [tex]a+b+c=1[/tex]
cm
[tex]\frac{ab}{a+b+2c}+\frac{bc}{b+c+2a}+\frac{ac}{a+c+2b} \le \frac{1}{4}[/tex]


gif.latex
 
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