Toán 8
Cho a, b, c > 0 thỏa mãn abc=1. CMR: \frac{1}{a^{2}+2b^{2}+3
} + \frac{1}{b^{2}+2c^{2}+3} + \frac{1}{c^{2}+2a^{2}+3} \leq \frac{1}{2}
Toán 8
Cho a, b, c > 0 thỏa mãn abc=1. CMR: \frac{1}{a^{2}+2b^{2}+3 + \frac{1}{b^{2}+2c^{2}+3} + \frac{1}{c^{2}+2a^{2}+3} \leq \frac{1}{2}