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Re: Integral confusion

  • To: mathgroup at smc.vnet.net
  • Subject: [mg107285] Re: [mg107262] Integral confusion
  • From: Gregory Duncan <gmduncan at econ.berkeley.edu>
  • Date: Mon, 8 Feb 2010 03:34:05 -0500 (EST)
  • References: <201002071112.GAA25294@smc.vnet.net>

I get

Log[1 + x] - Log[6 + x]

which is also apparent from observation.

On Sun, Feb 7, 2010 at 3:12 AM, Jon Joseph <josco.jon at gmail.com> wrote:
> All: Is this integral wrong? If not could someone explain the minus sign
> inside the log?
>
> Integrate[1/(x + 1) - 1/(x + 6), x] // Simplify
>
> log(-2 (x + 1)) - log(2 (x + 6))
>
> Thanks, Jon.=
>
>


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