So I came across a problem that said to use u-sub to solve:(adsbygoogle = window.adsbygoogle || []).push({});

integral(x^4sinxdx)

But the only way I could think of solving it is by the tabular method (or by parts.) I'm not asking in the sense of a homework question I'm just curious to see what I substitute u for in this problem.

Thanks.

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# Using u-sub for inetgral(x^4sinxdx)

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