+0  
 
0
257
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avatar+222 

What is the exact value of cos 30 °?

 

give the answer as a simplified fraction

 Mar 12, 2018
 #1
avatar+15484 
+1

cos 30

  30 degrees is a reference angle on the unit circle      cos(30)  = sqrt3/2

 Mar 12, 2018

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