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If we start at the point (1, 0) and travel once around the unit circle, we travel a distance of 2π units and arrive back where we started. If we continue around the unit circle a second time, we will repeat all the values of x and y that occurred during our first trip around. Use this discussion to evaluate the following expression.

 

sin(2pi+pi/6)

 Mar 24, 2018
 #1
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sin(2pi+pi/6)

 

this must equal    sin (pi/6)  Becasue it is just sine (pi/6 + 1 rotation)

 

sin(pi/6) = 0.5

 Mar 26, 2018

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