Cos(x)+cos(2x)-cos(5x)-cos(4x)=0

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


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

Multiply osC * x
osxC + cos(2x) + -1cos(5x) + -1cos(4x) = 0

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

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

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

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

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

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

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

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

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

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

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

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

Combine like terms: 2cosx + -5cosx = -3cosx
-3cosx + -4cosx + osxC = 0

Combine like terms: -3cosx + -4cosx = -7cosx
-7cosx + osxC = 0

Solving
-7cosx + osxC = 0

Solving for variable 'c'.

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

Add '-1osxC' to each side of the equation.
-7cosx + osxC + -1osxC = 0 + -1osxC

Combine like terms: osxC + -1osxC = 0
-7cosx + 0 = 0 + -1osxC
-7cosx = 0 + -1osxC
Remove the zero:
-7cosx = -1osxC

Divide each side by '-7osx'.
c = 0.1428571429C

Simplifying
c = 0.1428571429C

See similar equations:

| -4cos^2(x)+1=0 | | 10x-(3x+1)=5(2x-1)-(x-8) | | a+1w=4+a | | (-8)+3x=4 | | 8m*xm= | | a+3w+2w=4+a | | 10x+y-3=6(x+y) | | 3x+1-x+4=2x-8+10+3x | | (x^3)-(2x^2)+2=(3x^2)+3x-13 | | (y/24x)/(yz/32)=x | | (y/24x)/(yz/32) | | 45+z-36=2+0.6*105 | | 3h/4=9 | | 5(p+12)=2p-7 | | -8(g+12)=12 | | 40000/0 | | 7(h+11)=147 | | 6(a+3)=36 | | 6(n-5)=24 | | Sin(22)=x/15,x | | Sin(22)=x/15 | | 48+2x=78 | | -9+5a+20+1= | | X(x^3-64a^3)=0 | | 5x-3x-1=15 | | x^2-3x+135=0 | | 8x-21=c | | 9y=7-2x | | (x-3)=(x+2)(x-2) | | 74x-14-9x=17+65x-31 | | 0.14+0.07(6000-x)=504 | | 0.14+0.07(7000-x)=581 |

Equations solver categories