SOLUTION: what is the exact value of sin(11pi/12)

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Question 669253: what is the exact value of sin(11pi/12)
Answer by Edwin McCravy(20060)   (Show Source): You can put this solution on YOUR website!
what is the exact value of sin(11pi/12)
There are 6 different ways we can go about this 
since  can be written in as the sum or difference
of special angles in these 6 ways:

 =  =  =  =  =  = 

I'll pick one arbitrarily, say

 = 

 =  

We use the formula:



 =  =  = 
 =  =  

Edwin
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