SOLUTION: Please help me with this question. I'm getting really confused with the 3x. I' not sure where to start. Find all of the exact solutions to the following equation. (Use the param

Algebra ->  Quadratic Equations and Parabolas -> SOLUTION: Please help me with this question. I'm getting really confused with the 3x. I' not sure where to start. Find all of the exact solutions to the following equation. (Use the param      Log On


   

Question 685893: Please help me with this question. I'm getting really confused with the 3x. I' not sure where to start.
Find all of the exact solutions to the following equation. (Use the parameter k as necessary to represent any integer.)
cos(3x) =1/2
Answer by lwsshak3(11628) About Me  (Show Source):
You can put this solution on YOUR website!
Find all of the exact solutions to the following equation. (Use the parameter k as necessary to represent any integer.)
cos(3x) =1/2
3x=π/3+2πk, 5π/3+2πk, k=any integer
x=π/9+2πk, 5π/9+2πk, k=any integer