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Primitive function

  1. May 2, 2005 #1
    Please any idea on this,find the primitive of arctan x
     
  2. jcsd
  3. May 2, 2005 #2
    Two ways: Make the substitution u=arctan x, or use integration by parts,

    [tex]\int u \ dv = uv - \int v \ du[/tex]

    where dv=dx, u=arctan x (they really work out in the same way anyways).
     
  4. May 2, 2005 #3
    Yah now I understand it will be the intergral of arctanxdx. thanx.
     
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