Hi guys. I can't think of a way to start this integration - can someone set me on the proper path? Thanks!
What I have so far:
find the area of the surface obtained by rotating the curve around the x-axis
dy/dx = picos(pix)
1 + (dy/dx)^2 = 1 + (pi^2)cos^2(pix)
integral 2(pi)sin(pix)√[1 + (pi^2)cos^2(pix)] = ?