SOLUTION: Solve: 4cos^2x-4cosx+1=0

Question 1065693: Solve:
4cos^2x-4cosx+1=0
Found 2 solutions by KMST, Boreal:
Answer by KMST(5328) (Show Source): You can put this solution on YOUR website!
as you knew from factoring polynomials.
Now, re-write that with instead of .

Factoring polynomials will follow you for as long as you have a math course.
It does not matter if you are studying trigonometry or calculus,
you cannot forget factoring.
Answer by Boreal(15235) (Show Source): You can put this solution on YOUR website!
4cos^2x-4cosx+1=0
(2 cos x -1)^2=0
2 cos x=1
cos x=(1/2)
This is (1/2) at pi/3 radians and at 5 pi/3 radians.
RELATED QUESTIONS
can you solve this problem 4cos^2x - 4cosx + 1 =... (answered by Alan3354)
please help me answer my question find all solutions of the equation... (answered by Greenfinch)
solve for (0,2pi) 4cos x+ 4cos^2 x+1=0 (answered by Alan3354,ikleyn)
solve the equation on the interval [0,2pi] 4cos^2x=... (answered by ikleyn)
factor:... (answered by lwsshak3)
solve over the interval [0,2pi), 2... (answered by nyc_function)
solve... (answered by lwsshak3)
solve to the nearest degree for all values on x in the interval 0≤x≤360,... (answered by Fombitz)
verify... (answered by htmentor)