Is the integration process following P in Cartesian coordinates:
$$ z = \cos(x^2+1), \qquad y=1$$
Evaluate
$$ \int_{(0,1,\cos(1))}^{(1,1,\cos(2))}\hat{F}dl$$
Over the integration process P and where
$$ \hat{F} = \tan(x)\hat{a}_{y}$$
I believe it's something that look like this.... but my cartesian coordinate given are different... I'm not sure about the parametric of my Cartesian coordinate.