February 24, 2017

Homework Help: TRIG

Posted by rossi on Friday, November 26, 2010 at 4:33pm.

what is the exact value of sin^2 pi/6-2 sin pi/6 cos pi/6 +cos^2 (-pi/6)?

a) 2- sqrt 3
b) 2- sqrt 3/ 2
c) 2+ sqrt 3/2
d) 2+ sqrt 3

I am not sure how to work this out and would appreciate you how to show me the process. Thank you in advanced!!!!!!!

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