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June 2nd, 2008, 01:01 PM   #1
Joined: Jun 2008

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Why can't I use the Difference Identity for Tan to derive its Confunction Identity??
dagitt is offline  
June 2nd, 2008, 02:31 PM   #2
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Well, that certainly would be an appealing way to proceed were it not for the fact that tan(pi/2) is undefined.
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