(Solved): explain each step 9. Consider the parametrized curve C starting from (2,0) and going to (2,0) alo ...

9. Consider the parametrized curve $C$ starting from $(2,0)$ and going to $(?2,0)$ along the part of the circle $x^2+y^2=4$ that is in the upper half plane (ie the part with $y?0$ ), and then going from $(?2,0)$ to $(2,0)$ along the straight line between those two points. (a) Sketch $C$. (b) Calculate the path integral of the vector field $\vec{F}=?x^2,xy?$ along $C$.