počítajme: 2sqrt(2x)=2; sqrt(2x)=1; x==0.5; 1. metóda zlogaritmovanie: 2 * 0.5log(x)=2;2=1+1; log(x)=2log(x);log(x)=0.5; x=0.5; def: log_a(x)=0.5 <=> sqrt(a)=x; a=1 => 1^0.5=1 => x==0.5, [...] Read more