cho a,b,c>0 CMR: $\left ( 1+\frac{1}{a} \right )^{4}+\left ( 1+\frac{1}{b} \right )^{4}+\left ( 1+\frac{1}{c} \right )^{4}\geq 3\left ( 1+\frac{3}{2+abc} \right )^{4}$
Gammaths11
Gammaths11
Member Since 04-05-2019Offline Last Active 08-08-2019 - 20:26