Should I take the AP Pre-Calc exam?

So today was the first day of school and my precalc teacher said that regular precalc covers most of the material of AP PreC and that we just have to do a little extra work to be ready for the exam. I had all As in Algebra 1, 2, and Geometry. I'm also taking AP Lang and Stats this year. Should I take the AP PreC exam? If so, how should I go about studying for it to get a passing grade? Thanks!