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Re: Re: Re: simplify a trig expression


On 2 Apr 2006, at 23:19, Andrzej Kozlowski wrote:

>>
>
> Although this makes no difference to the actual problem, there is  
> an obvious bug in the last line. It ought to be of course
>
> f[Sin[x_]^2] := (1/2)*(1 - Cos[x])
>

Let me try it again (sigh)

f[Sin[x_]^2] := (1/2)*(1 - Cos[2x])

Andrzej



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