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April 18, 2015

April 18, 2015

Posted by **Victor L.** on Wednesday, May 15, 2013 at 12:15pm.

- trig -
**Steve**, Wednesday, May 15, 2013 at 2:50pmsinx cosy(cotx tany-1)

sinx cosy cosx/sinx siny/cosy - sinx cosy

cosx siny - sinx cosy

sin(y-x)

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