You are given the polar curve r = e. (a) List all of the points (r, 0) where the tangent line is horizontal. In entering your answer, list the points starting with the smallest value of r and limit yourself to 1 Point 2: (r, 0) =. Point 3: (r, 0) =].> (b) List all of the points (r, 0) where the tangent line is vertical. In entering your answer, list the points starting with the smallest value of r and limit yourself to 1 Point 3: (r, 0) = (