How would you go about doing this:(adsbygoogle = window.adsbygoogle || []).push({});

[tex]\int64x^2cos(4x)dx[/tex]

The question specifically asks to integrate it by parts, so I integrated it that way a couple of times and came out with some long mess of sines and cosines, but it's not the right answer.

Thanks.

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# Homework Help: Integration by parts

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