I wasn't sure what to title this thread, so I apologise if it is misleading. I took trigonometry in high school and remember the fundamental things (unit circle, identities, sohcahtoa, right triangles, the law of sines, cosines, etc.). I have been able to handle trigonometry in calculus, but I still feel a little uneasy about my trig knowledge and would like to take the course again. I was thinking about taking it next semester along with calculus III, but I am wondering how this will come across to graduate schools reviewing my transcript--especially since I'm taking trig after my second year of calc. Would this be unfavorable? I have tried to study trig using several books but have not found any that go at the pace I need, so I have trouble with self study. I think taking an actual class would be beneficial.