6. Consider the two circles r= 1 and r= 2 cos θ. (a) [8 pts] Show that the area of the region inside the circle 2 cos that is outside the circle r-1 i(You MUST provide a figure where the area/region of interest is shaded!) (b) [4 pts] Find the area of the region that is inside both circles. (You MUST provide a figure where the area/region of interest is shaded!) the circle r-I1S_