1. Evaluate!' F. dr where F(x,y)-仪+1, 2xy) and C, is defined by x-1-cost, y-sin,, 0 s 1 s Ï , by three methods: a. Directly, without using that F is a conservative vector field b. Find a function fsuch that Vf -F, then use the Fundamental Theorem of Line Integrals. c. Knowing that F is conservative, so the integral is independent of path, evaluate where C, is the simpler curve defined by x-r, y = 0.0 s , s F-dr