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July 4, 2015

Homework Help: precalculus

Posted by Blake on Tuesday, November 10, 2009 at 4:13pm.

1.csc^2x-1/csc^2x=cos^2x
2.1/1-cosx+1/1+cosx=2csc^2x
3.sinxcosy+cosxsiny/cosxcosy-sinxsiny=tanx+tany/1-tanxtany

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