anonymous
  • anonymous
help intergrate from x=0 to x=1, 1 devide by [(x+1)powerd by 2][((x powered by 2)+ 1]
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
experimentX
  • experimentX
\[\int\limits_{}^{}1/((x+1)^2(x^2+1) dx\]
anonymous
  • anonymous
that's it, how did you write it simply like that ?
experimentX
  • experimentX
click on Equation below your textbox .. left corner

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anonymous
  • anonymous
so do you have the solution ?
experimentX
  • experimentX
no ... http://www.wolframalpha.com/input/?i=integrate+1%2F%28%281%2Bx%29%5E2+%281%2Bx%5E2%29%29
anonymous
  • anonymous
partial fractions big pain in the neck
anonymous
  • anonymous
can you do it ?
anonymous
  • anonymous
no
anonymous
  • anonymous
but are you able to work it out ?
anonymous
  • anonymous
yes, idea is to write \[\frac{1}{(x+1)^2(x^2+1)}=\frac{a}{x+1}+\frac{b}{(x+1)^2}+\frac{cx+d}{x^2+1}\]
anonymous
  • anonymous
how is that simplified ?
anonymous
  • anonymous
then solve for the coefficients a, b, c and d. it is a big pain in the neck. will get a system of linear equations to solve i would cheat and look here http://www.wolframalpha.com/input/?i=1%2F%28%28x%2B1%29%5E2%28x%5E2%2B1%29%29 where is says "partial fraction expansion" if you want the method click on "show steps"
anonymous
  • anonymous
once you see it you will realize why i said "no"
anonymous
  • anonymous
how about \[\int\limits_{?}^{?}1\div(5+3cosx) dx\]
anonymous
  • anonymous
help

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