SOLUTION: Find an exact solution to the equation. 1= 8 cos(3 x + 1) - 3 x = ___________ _____?

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Question 488372: Find an exact solution to the equation.
1= 8 cos(3 x + 1) - 3
x = _________________?
Answer by lwsshak3(11628) About Me  (Show Source):
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Find an exact solution to the equation.
1= 8 cos(3 x + 1) - 3
**
1= 8 cos(3 x + 1) - 3
4= 8 cos(3 x + 1)
cos(3 x + 1) =4/8=1/2
3x+1=π/3
3x=π/3-1=(π-3)/3
x=(π-3)/9