I've been teaching myself calc this summer, and the concepts are coming fine, but I'm struggling with using trig in examples. I don't really understanding taking the derivatives of inverse and normal trig fxns and I've skipped it when doing integrals as well. What do I need to master in order to understand this stuff, specifically? The fxns and identities just don't make sense to me algrebraically. Any websites I could visit that could help? It's appreciated!