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December 21, 2014

December 21, 2014

Posted by **Anonymous** on Tuesday, February 8, 2011 at 12:56am.

Express each as a function of theta:

a. sin (270deg + theta)= cos theta

b. cos (pi + theta)= -cos theta

c. tan (810 + theta)= ?????

d. sin (theta - 180)= -sin theta

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