SOLUTION: solve cos(x/2)=1/2, 0 less than or equal to x less than 2 pi

Algebra ->  Trigonometry-basics -> SOLUTION: solve cos(x/2)=1/2, 0 less than or equal to x less than 2 pi      Log On


   

Question 933539: solve cos(x/2)=1/2, 0 less than or equal to x less than 2 pi
Answer by lwsshak3(11628) About Me  (Show Source):
You can put this solution on YOUR website!
solve cos(x/2)=1/2, 0 less than or equal to x less than 2 pi
cos(x/2)=1/2
x/2=π/3,5π/3 (in quadrants I and IV where cos>0
x=2π/3,10π/3