SOLUTION: I am trying to use the addition and subtraction formulas to simplify sin(2pi-x). I am not sure where to begin.

Question 69605: I am trying to use the addition and subtraction formulas to simplify sin(2pi-x). I am not sure where to begin.
Answer by Edwin McCravy(20060) (Show Source): You can put this solution on YOUR website!

I am trying to use the addition and subtraction 
formulas to simplify

. 


I am not sure where to begin.

You have to know the formula



Substitute  for A and  for B



Now use the fact that 

 and 

Substituting those:



 is just 0 and we can erase the 1:



Edwin

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