![]() ![]() Obviously some of this is meant to be derived from the basic identities, but I feel like I'm missing something every time. the antiderivative of secx = ln|secx+tanx|+C or sinxsiny=1/2(cos(x-y)-cos(x+y)). 16 years ago? Anyway, I've written out a cheat sheet with basic trig identities and indefinite integrals from Stewart's textbook, but I'm currently in the section where we're just doing integrals of exponential trig functions and it seems like every problem involves a crucial trig identity I don't know (i.e. I'm doing okay, but I tend to get tripped up on integration involving trig functions because everything I learned about trig was in precalc in high school, so. ![]() Any advice on this? I'm a returning student taking calc 2 now, about 12 years after taking calc 1. ![]()
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