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May 25, 2015

Homework Help: mathematics trignometry

Posted by Anonymous on Sunday, March 20, 2011 at 11:55am.

prove that the following are identity
1. (cotA+cosecA-1)/(cotA-cosecA+1)=cosecA+cotA
2. (sinA-cosA+1)/(sinA+cosA-1)=
1/(secA-tanA)

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