May 26, 2016

Homework Help: trigonometry

Posted by anon on Friday, February 11, 2011 at 5:54pm.

can you correct the rest for me please?

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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