Răspuns:
Explicație pas cu pas:
a) (√3+√5)/2=(1,73+2,23)/2=3,96/2=1,98
(1,2+√2)/2=(1,2+1,41)/2=1,30
(2,13+2,44)/2=4,579=2,28
b) -ma=(2+8)/2=10/2=5
mg=√2×8=√16=4
ma=(1/3+2/3)/2=1/2=0,5
mg=√1/3×2/3=√2/3=0,47
ma=(√2+9√2)2=10√2/2=5√2
mg=√2×9=3√2
ma=(4-√15+4+√15)/2=8/2=4
mg=√(4²-15)=√(16-15)=1
