x=y^(1/3)
y=1,x=1
y=0,x=0
V = [0,1] ∫ π x² dy = [0,1] ∫ π [y^(1/3)]² dy = [0,1] ∫ π y^(2/3) dy
= 3π/5 y^(5/3) | [0,1] = 3π/5