Răspunsuri

2014-10-26T17:02:01+02:00
2√12=2·2√3=4√3
2√75=2·5√3=10√3
(2√3-4√3+5√3)^-1=(3√3)^-1=1/(3√3)rationalizam=(3√3)/(3√3)²=3√3/9·3
simplif=√3/9