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dragonsmall777


[TEX](2^a +( \frac{1}{2})^a)^b \leq (2^b+(\frac{1}{2})^b)^a [/tex]
với :[TEX] a \geq b \geq 0 [/TEX]
với :[TEX] a \geq b \geq 0 [/TEX]
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