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August 24th, 2014, 09:25 PM   #1
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Circular measure

How to solve for question b?
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August 25th, 2014, 09:37 AM   #2
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Quote:
Originally Posted by jiasyuen View Post
How to solve for question b?
You keep posting problems showing no work,
and attaching diagrams usually almost impossible to make out.
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August 25th, 2014, 10:20 AM   #3
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Quote:
Originally Posted by jiasyuen View Post
How to solve for question b?
Note that $\cos(\pi/8 )=\frac{\sqrt{2+\sqrt{2}}}{2}$. Can you post your attempt?
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