4. Turn in Problem 72, Page 1050. Find curl ( curl F ) for the vector field F = (x]= )i -(2x=)/ + ()=)k 18 5. Evaluate the line integral ds over the path defined by y = from 2 16 x =2 to x =6 by converting the line integral to x and dx. This is also 14 known as using x as the parameter. 12 10 B 6 -4 2 D N 4