cos(2x)-cos(4x)-cos(6x)-5=0

Simple and best practice solution for cos(2x)-cos(4x)-cos(6x)-5=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)-cos(4x)-cos(6x)-5=0 equation:


Simplifying
cos(2x) + -1cos(4x) + -1cos(6x) + -5 = 0

Remove parenthesis around (2x)
cos * 2x + -1cos(4x) + -1cos(6x) + -5 = 0

Reorder the terms for easier multiplication:
2cos * x + -1cos(4x) + -1cos(6x) + -5 = 0

Multiply cos * x
2cosx + -1cos(4x) + -1cos(6x) + -5 = 0

Remove parenthesis around (4x)
2cosx + -1cos * 4x + -1cos(6x) + -5 = 0

Reorder the terms for easier multiplication:
2cosx + -1 * 4cos * x + -1cos(6x) + -5 = 0

Multiply -1 * 4
2cosx + -4cos * x + -1cos(6x) + -5 = 0

Multiply cos * x
2cosx + -4cosx + -1cos(6x) + -5 = 0

Remove parenthesis around (6x)
2cosx + -4cosx + -1cos * 6x + -5 = 0

Reorder the terms for easier multiplication:
2cosx + -4cosx + -1 * 6cos * x + -5 = 0

Multiply -1 * 6
2cosx + -4cosx + -6cos * x + -5 = 0

Multiply cos * x
2cosx + -4cosx + -6cosx + -5 = 0

Reorder the terms:
-5 + 2cosx + -4cosx + -6cosx = 0

Combine like terms: 2cosx + -4cosx = -2cosx
-5 + -2cosx + -6cosx = 0

Combine like terms: -2cosx + -6cosx = -8cosx
-5 + -8cosx = 0

Solving
-5 + -8cosx = 0

Solving for variable 'c'.

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

Add '5' to each side of the equation.
-5 + 5 + -8cosx = 0 + 5

Combine like terms: -5 + 5 = 0
0 + -8cosx = 0 + 5
-8cosx = 0 + 5

Combine like terms: 0 + 5 = 5
-8cosx = 5

Divide each side by '-8osx'.
c = -0.625o-1s-1x-1

Simplifying
c = -0.625o-1s-1x-1

See similar equations:

| 2=2.27-5/4 | | -4+14=15x-3-14x | | -6(6b-7)=-141+3 | | 5(6+4c)+3= | | 3p+6=-3p-12 | | 9+10v-2v*2+8v*2-9v= | | 8-b=28 | | 2(y+2)+3y=9 | | 6y^2+34y-56= | | 7-4p=8+p-6 | | 5x-8=4x+13 | | -2x=-x+-34 | | X+3(2x+1)=13 | | 5n+15=4+22 | | 46-16=5(x-8) | | 4+2a=-3(-3a+1) | | 52=4(10) | | -38=-8+5y | | -5.2c=.04m | | 35-2x=3(1-2x) | | x+24+2x=-9-2x-12 | | 5(7k+10)= | | F-2/3+2/5=64/5 | | 6m=-3-15+2m | | 4x+5+7x=14 | | 4x+3(-2x+5)=7 | | e+e^4x=0 | | -9(a+2)=-27 | | 3+n=-2(n-3) | | 6.8-4.26=5.6b-3 | | 9c+24=-3c | | Tanx=2.41 |

Equations solver categories