SOLUTION: Cos2x+3cosx-1=0
Algebra.Com
Question 1093394: Cos2x+3cosx-1=0
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
Is it cos(2x) ?
or cos^2(x) ?
RELATED QUESTIONS
I need help with this problem
3cosx+1=... (answered by Alan3354)
if cos2x+3cosx-1= 0
then x=?
I got pi/2 for some reason the answer is pi/3 WHY?
(answered by stanbon)
Solve:... (answered by Cromlix)
2cosx^2-3cosx+1 (answered by Alan3354)
3sinx-3cosx=1 (answered by Alan3354)
factor:... (answered by lwsshak3)
cos2x+5sinx-3=0 (answered by Alan3354)
solve... (answered by Gogonati)
Solve algebraically :
3 cos2x+cosx+1=0
(answered by srinivas.g)