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Re: Simplify


Hello Max
Cox[x] != Cos[x]

These things are so easy to see, but so hard to find----and vice versa.

W Craig Carter
Sent from a portable device



On Aug 13, 2012, at 0:16, "news" <news at newsfe03.iad.highwinds-media.com> wrote:

> Hi folks,
>
> Simplify must result:
>
> Simplify[(1 + Sin[x] - Cos[x])/(1 + Sin[x] + Cos[x]) == Tan[x/2]]
> True
>
> but why instead it results:
>
> Simplify[(1 + Sin[x] - Cos[x]) / (1 + Sin[x] + Cox[x]) ==  Tan[x/2]]
>
> ((Cos[x] - Cox[x])*Tan[x/2]) / (1 + Cox[x] + Sin[x]) == 0
>
> Thanks.
>
> Max.
>



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