on tap lớp 10 nak

B

buitrung2002

[latex] \right]\frac{a_{1}}{a_{2}+a_{3}+1}+\frac{a_{2}}{a_{1}+a_{3}+1}+\frac{a_{3}}{a_{1}+a_{2}+1}+(1-a_{1}).(1-a_{2}).(1-a_{3}) \leq 1
Với a_{1},a_{2},a_{3} thuoc [0;1] [/latex]
 
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M

mamcay

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