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03/31/11 11:28am


Can we get the output "Cos[2x]" when we put the input(Cos[x])^2 - (Sin[x])^2 ?

If yes, how ?

Thanks !

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Author Date Posted
trigonometry babaz 03/31/11 11:28am
Re: trigonometry Patrick 03/31/11 2:18pm
Re: trigonometry Bill 03/31/11 6:53pm
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