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September 17, 2014

September 17, 2014

Posted by **trig** on Sunday, July 14, 2013 at 10:57am.

(sin^2x+cos^2x) - (csc^2x-cot^2x)

- trig -
**Steve**, Sunday, July 14, 2013 at 4:55pmrecall the basic identities:

sin^2+cos^2 = 1

csc^2 = 1+tan^2

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