Find surface area of solid formed by rotating the following curve about the y-axis:
on
*The "a" in there kinda screwed me up, but this is my work:
When I solved for the arc length, I ended up getting , like this:
**Is this right?
So my integral is:
Then I pulled my square root out in front:
I have more, but can some one check this up until this point?
Thanks!! Molly