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February 28, 2015

February 28, 2015

Posted by **damion** on Wednesday, January 25, 2012 at 11:49pm.

- trig -
**Damon**, Thursday, January 26, 2012 at 12:01am30 60 90 triangle is 1, sqrt 3 , 2

cos 60 = 1/2

sin 60 = sqrt 3 /2

tan 60 degrees = sqrt 3 / 1

so 60 degrees

tan is also + in quadrant 3

so

60 + 180 = 240 degrees

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