Răspunsuri

2014-10-03T22:04:28+03:00
2014-10-03T22:04:52+03:00
(2√3/12+2√25/27)·√3/13=(√3/6+2·5/27)·√3/13=(√3/6+10/27)·√3/13=(27√3+10)/27·√3/13=27·3+10√3/27·13=81+10√3/351