How can I resolvve this:
Create a plot for the following problem. Find the area that is inside the circle r=2, but outside the cardioid 2+2cos(θ).
My code:
var('a')
polar_plot([2,2+2*cos(a)],(a,0,2*pi))
When I add the parameter fill=RealNumber, the area is filled, but I can't control what the area; what means this parameter?