А)... = (3sqrt(2) + sqrt(3) ) sqrt(2) - 0.5 *2sqrt(6)
6+sqrt(6) - sqrt(6) =6
б) ...=15+sqrt(75) - 5sqrt(3)
15+5sqrt(3) - 5sqrt(3)=15
в)...=(sqrt(10) + sqrt(5) ) * 2sqrt(5) - 10sqrt(2)
2sqrt(50)+10-10sqrt(2)
10sqrt(2) + 10 - 10sqrt(2)=10
г)...=(sqrt(6)+sqrt(3)) * 2sqrt(3)-2sqrt(18)
2sqrt(18)+6-6sqrt(2)
6sqrt(2)+6-6sqrt(2)=6
g)...= (5sqrt(3) + 4sqrt(3) - 3sqrt(3)) / sqrt(12)
(6sqrt(3) ) / sqrt(12)
(6)/sqrt(4)= (6)/2=3