Help please huhu as much as possible computerized solution so that i can read and undertand clearly, thank you so much

3. Witch of Agnesi. Consider a circle of radius a, which is tangent to the x-axis at the origin. Let B be a point on the horizontal line y = 2a and let the line segment AB on the vertical gives the line segment BP. Using the angle 9 in the figure as a parameter, find parametric equations of the curve traced by the point P as A varies around the circle. The curve, more historically famous than useful, is called the witch of Agnesi. muse 9.4.13 Witch of Agnesi in Problem 38