I had done by trigonometric substitution.. I think there is a special way to solve questions and less work Calling $ arc.cosx = t $ is simple, but $log$ cm $\pi$ below complicates

Indefinite integral

Who can help me, or give any suggestions already thank you!


closed as unclear what you're asking by John B, Claude Leibovici, kimchi lover, Leucippus, Jyrki Lahtonen Nov 9 at 10:54

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    $\begingroup$ Sorry, but closed-form integration is more of an art than a science. In fact, if you just were to jot down some expression like this at random, it would almost certainly not have a nice closed form solution. Feel vindicated that you were able to integrate it at all, and stop worrying that there is some secret method you don't know about. $\endgroup$ – Paul Sinclair Nov 9 at 3:53