Please help me figure out these 3 exercises- Just where the blanks are.
Exercise. Consider a deltoid: This curve is drawn in a counterclockwise fashion by d(t) (2 cos(t) +cos(2t),2 sin(t) - sin(2t)) as t runs from 0 to 2Ï. Let R be the region enclosed by this curve. . set F(z,v) =
