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What is the exact value of the trigonometric expression?

sin(5π6)


AngelRay  Feb 17, 2018
 #1
avatar+91097 
+1

5pi/ 6  is a 30°  reference angle in the 2nd quadrant....so....

 

sin 5pi/6  =   sin (30°)  =  1/2

 

cool cool cool

CPhill  Feb 17, 2018

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