Cho $\left\{\begin{matrix} a\geq 1\\ b\geq 1\\ c>0\\ a+b+abc=ab \end{matrix}\right.$. Tìm Min: $P=\sqrt{(a-1)(b-1)}+\frac{18ab}{a+b+2abc}$
Tìm Min: $P=\sqrt{(a-1)(b-1)}+\frac{18ab}{a+b+2abc}$
Started By Forgive Yourself, 14-02-2016 - 21:05
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Posted 14-02-2016 - 21:05
Forgive Yourself
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