Răspuns:
1.a)|5radical7|=5radical7
b)5radical7+3radical7=8radical7
c)3radical7-5radical7=-2radical7
d) nu vad d ul
2.a)|-2radical3|^-1=(2radical3)^-1=radical3/6
b)=-8radical18=-24radical2
c)=-2radical2
d) nu vad d ul
3)radical2=1,41=>a=3×1,41=4,23
radical5=2,23=>b=2×2,23=4,46
deci a<b
4)mg=radical a×b |formula ,dar nu stiu sa o aplic ;(
5)=2radical6×(2radical2+3radical2)+(3radical15):(3radical5-6radical5)
2radical6×5radical2+(3radal15):(-3radical5)
10radical12-radical3
20radical3-radical3
19radical3
6) nu stiu sa l fac.
Sper ca te-am ajutat!
