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How does (log algebra)

  1. Jul 29, 2008 #1
    half way through a question and i'm stumped, ive got all the answers and i'm just revising so the answers no problem just dont get how the integral of {(2/2-z) + (2/1+2z)}dz become -2ln|2-z|+ln|1+2z| +c
     
  2. jcsd
  3. Jul 29, 2008 #2

    Dick

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    Do the two terms separately. For 2/(2-z) use the u substitution u=2-z. What substitution would you use for the second term?
     
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