SubArea: Power and radical functionsLevel: CProject ID: 2010014805Source Problem: 1003159101Accepted: 0Clonable: 1Easy: 0Choose the function that describes the dependence of a cube surface S on the length of its space diagonal u.S=2u2; u∈(0;∞)S=6u2; u∈(0;∞)S=3u2; u∈(0;∞)S=18u2; u∈(0;∞)
