SOLUTION: Find the sine and cosine of the angle. If the angle is not one of the angles on the unit circle, use a calculator and round to three decimal places. sin(5pi/3) cos(5pi/3)

Algebra ->  Trigonometry-basics -> SOLUTION: Find the sine and cosine of the angle. If the angle is not one of the angles on the unit circle, use a calculator and round to three decimal places. sin(5pi/3) cos(5pi/3)      Log On


   

Question 1203404: Find the sine and cosine of the angle. If the angle is not one of the angles on the unit circle, use a calculator and round to three decimal places.
sin(5pi/3)
cos(5pi/3)
Found 2 solutions by ikleyn, MathLover1:
Answer by ikleyn(52834) About Me  (Show Source):
You can put this solution on YOUR website!
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5pi/3 is one of the table angles on unit circle that you should know as you know the multiplication table.



Answer by MathLover1(20850) About Me  (Show Source):
You can put this solution on YOUR website!

using the Unit Circle, we have 5pi%2F3 (300 degrees) in quadrant IV
sin%285pi%2F3%29=-sqrt%283%29%2F2=-0.866
cos%285pi%2F3%29=1%2F2=0.5