Use Greens Theorem to evaluate C F dr. (Check the orientation of the curve before

Use Green’s Theorem to evaluate ʃ_C F • dr. (Check the orientation of the curve before applying the theorem.)

F(x, y) = (√x² + 1, tan^-1 x), C is the triangle from (0, 0) to (1, 1) to (0, 1) to (0, 0)