kieutilucky

Cho a,b,c>0. Tìm $min (\frac{a^{2}}{(2b+3c)(2c+3b)}+\frac{b^{2}}{(2c+3a)(2a+3c)}+\frac{c^{2}}{(2a+3b)(2b+3a)})$

$Cho a ,b , c> 0. Tìm Min(\frac{a^{2}}{(2b+3c)(2c+3b)}+\frac{b^{2}}{(2c+3a)(2a+3c)}+\frac{c^{2}}{(2a+3b)(2b+3a)})$