Re: Simplify
- To: mathgroup at smc.vnet.net
- Subject: [mg127663] Re: Simplify
- From: "Dr. Wolfgang Hintze" <weh at snafu.de>
- Date: Tue, 14 Aug 2012 04:20:01 -0400 (EDT)
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On 13 Aug., 09:20, "news" <n... 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. > > Max, I get In[90]:= Simplify[(1 + Sin[x] - Cos[x])/(1 + Sin[x] + Cos[x])] Out[90]= Tan[x/2] and also In[89]:= Simplify[(1 + Sin[x] - Cos[x])/(1 + Sin[x] + Cos[x]) == Tan[x/ 2]] Out[89]= True and I don't see where you strange second line may come from. Best Ragards, Wolfgang