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intcos^3x/sqrt (sinx)dx...

`intcos^3x/sqrt (sinx)dx`

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`intcos^3x/sqrt (sinx)dx`
`I=intcos^3x/sqrt (sinx)dx`
`I=int(cos^2x/sqrt (sinx))cosxdx`
`I=int((1-sin^2x)/sqrt (sinx))cosxdx`
Let `sinx=t`
`cosxdx=dt`
`I=int((1-t^2)/sqrt (t))dt`
`I=intt^-(1/2)dt−intt^(3/2)dt`
...
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