Given abc=1 and a,b,c>0 Prove 1/a+1/b+1/c+3/(a+b+c) ≥ 4 or \dfrac{1}{a}+\dfrac{1}{b}+\dfrac{1}{c}+\dfrac{3}{a+b+c}≥4 Steven Zheng posted 6 months ago 0 0 0