Evaluate \int_C \mathbf{F} \cdot \mathbf{dr}. \mathbf{F}(x, y) = <\frac{1}{y} - e^{2x}, 2x - \frac{x}{y^2}>, C \ is \ the \ circle \ (x - 5)^2 + (y + 6)^2 = 16, oriented \ counterclockwise. The integral becomes tedious even if I parametrize it...