Răspunsuri

2014-08-05T21:39:40+03:00
6) 1/(√3 +√2) +  1/(√2-1)=

=(√3-√2)/(3-2) + (√2+1)/(2-1)=

=√3-√2 +√2 +1=  √3+1

5)N= |2-√3| + | 3+√3|  -2√3=

= 2 -√3 +3  +√3 -2√3=

= 2+3 -2√3=  5 -2√3  ∉N