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August 27, 2014

August 27, 2014

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

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!!!!!!!

- TRIG -
**Damon**, Friday, November 26, 2010 at 4:53pmsin pi/6 = sin 30 deg = 1/2

cos pi/6 = .5 sqrt 3

cos -x = cos x

so

1/4 - .5 sqrt 3 + 3/4

1 - .5 sqrt 3

(2 - sqrt 3 ) / 2

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