∫√(−sin2t+cos2t−tan2t) dt
I'm aware of a few trig identities, such as cos2t−sin2t=cos(2t) and tan2t=sin2tcos2t but these don't seem to help simplify the problem.
No simple u-substitution seems to prevent itself, and my attempt to integrate by parts has resulted in an even more difficult integrand.
WolframAlpha and a few different integral calculators cannot seem to solve this.
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