a)
rotacija oko Y ose
x=cos(2*u)*2*sin(2*u)*sin(2*u)+cos(3*u)y=uz=10<=U<=2*pi
b)
x=cos(2*u)*2*sin(2*u)*sin(2*u)+cos(3*u) / x=cos(v)
y=u / y=2*sin(v)z=1 / z=v
0<=U<=2*pi / 0<=v<=2pi