Cos^2x-4cosx+3=0

Simple and best practice solution for Cos^2x-4cosx+3=0 equation. Check how easy it is, and learn it for the future. Our solution is simple, and easy to understand, so don`t hesitate to use it as a solution of your homework.

If it's not what You are looking for type in the equation solver your own equation and let us solve it.

Solution for Cos^2x-4cosx+3=0 equation:


Simplifying
Cos2x + -4cosx + 3 = 0

Reorder the terms:
3 + -4cosx + os2xC = 0

Solving
3 + -4cosx + os2xC = 0

Solving for variable 'c'.

Move all terms containing c to the left, all other terms to the right.

Add '-3' to each side of the equation.
3 + -4cosx + -3 + os2xC = 0 + -3

Reorder the terms:
3 + -3 + -4cosx + os2xC = 0 + -3

Combine like terms: 3 + -3 = 0
0 + -4cosx + os2xC = 0 + -3
-4cosx + os2xC = 0 + -3

Combine like terms: 0 + -3 = -3
-4cosx + os2xC = -3

Add '-1os2xC' to each side of the equation.
-4cosx + os2xC + -1os2xC = -3 + -1os2xC

Combine like terms: os2xC + -1os2xC = 0
-4cosx + 0 = -3 + -1os2xC
-4cosx = -3 + -1os2xC

Divide each side by '-4osx'.
c = 0.75o-1s-1x-1 + 0.25sC

Simplifying
c = 0.75o-1s-1x-1 + 0.25sC

See similar equations:

| -4-48= | | -8y-4y-17=19 | | (x+1)*4=(2x)*3 | | 20m^3+38m^2+12m= | | x^2+36x+324=10 | | 11+(-5)+(-5)+11= | | -8x-15=20x+3 | | y^2-11yz+10z^2=0 | | 8x+31-x^2=0 | | 35-3x=-14+4x | | 10x(x+1)=x(12x+2) | | 8x-x^2+31=0 | | 6c+11=2c+58 | | -4(-3)+5x=17 | | 28-8x=-4x | | 242x^3-18x=0 | | (1/5)(x/2+5)=4/9 | | r^2-5=59 | | 12-5(x+2)=13-6(x+1) | | -49-35= | | 4x+3y=600 | | 2x+1+3x=36 | | p=-3q^2+4q+2 | | 4x+2x-6x+7x=7 | | 2v+3w=6 | | 1/3(3.14)16 | | 56x+45-27=67x-25 | | 64y^2-100=0 | | x+1*4=2*x*3 | | (3/x)=((14^(1/2))-1)/4 | | 0.4(g-20)-0.2=36 | | -68x+10=40+78x |

Equations solver categories