For the following exercises, let S be the disk enclosed by curve

C:r(t)=?cos?cost,sint,sin?cost? for 0?t?2?, where 0????/2 is a fixed angle.

For what value of ? is the circulation a maximum?

For the following exercises, let S be the disk enclosed by curve C : r(t) = (cos 4 cost, sin t, sin y cost) , for 0