Răspunsuri

2014-04-16T18:55:37+03:00
=(1+√2-√3+√7+√11+√2√7-√3√7+√7√11)/(1+√2-√3+√11)= grupam termenii
=(1+√2-√3+√11+√7+√2√7-√3√7+√7√11)/(1+√2-√3+√11)=
=[(1+√2-√3+√11)+√7(1+√2-√3+√11)]/(1+√2-√3+√11)=
=(1+√2-√3+√11)/(1+√2-√3+√11)+√7(1+√2-√3+√11)/(1+√2-√3+√11) simplificam=
=1+√7