i'm trying to solve [math]\int x^3+x^4tanx dx[/math] and

>>8828260
Would splitting it up and then using a reduction formula for x^4*tan^n x work??

>>8828260
Use the linearity of the integral, then integrate by parts. But I don't think that second term is trivial at all, so you'd be better advised looking it up.

>>8828260
I don't know.

>>8828298
My stewart book shows this in 5.5 though which iz before parts

You can show tanx as something else. Tryusing that trick.

>>8828363
I'm not sure how then, since I looked it up and the indefinite integral of xtan(x) is something horrid involving a few polylogs.

>>8828260
>linearity
Split those bitches
>by parts
Reduce order of the stand alone x term
>rince & repeat

Why wouldn't that work?

>>8828415
It says its not needed. Just to use simple substitution.

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223KB, 960x960px

>>8828431
Perhaps using the go-to integration technique will elucidate the substitution needed....

>>8828438
but i want to do it properly. if i just do it with parts it's going to make using ocams razor harder lator on, which could conflict with the interferon.