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Old 09-17-2010, 08:25 PM
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TheDon TheDon is offline
Ghost of Diesels Past
 
Join Date: Oct 2005
Posts: 13,285
ok

I will use @ for theta

csc@(1-csc@^2) + (@ + cot@)(-csc@cot@)

then I get confused what to do with the right side.
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