1. The problem statement, all variables and given/known data Which of the following integrals represents the area of the surface obtained by rotating the parametric curve x=t-t^2 y=(4/3)t^(3/2) 1<t<2 2. Relevant equations A = integral ( 2pi(y) * sqrt( 1+ (dy/dx)^2))dx 3. The attempt at a solution I solved for dy/dx and got 12(t^1/2) / (9-18t) and then plug (1-2t)dt in for dx and (4/3)t^3/2 for y If i plug these all in and algebra correctly will i get the correct answer? How do i include the information that it's being rotated around the x-axis into my equation?