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Topic: Integral calculation!
Replies: 4   Last Post: Mar 30, 2013 12:37 PM

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Roland Franzius

Posts: 569
Registered: 12/7/04
Re: Integral calculation!
Posted: Mar 30, 2013 6:11 AM
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Am 30.03.2013 05:55, schrieb William Elliot:
> Please, help with this:
> I need to calculate integral(0,pi/4) x.tan x dx.
> http://at.yorku.ca/cgi-bin/bbqa?forum=calculus;task=list

int dx x tan x = x^2 tan x - int dx x^2/(1+x^2)=
x^2 tan x - int dx ( 1 - 1/(1+x^2) )


Roland Franzius

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