1. The problem statement, all variables and given/known data r=2-3cosθ Find the tangent line at any point, and at the point (2,∏) Find the tangent line(s) at the pole 2. Relevant equations Do I have to use x=rcosθ and y=rsinθ to convert it to rectangular to find slopes? 3. The attempt at a solution Is the point 2∏ even a point in the graph. It is a limicon (sp?) graph?