cosx+cos(4x)+cos(7x)=0

Simple and best practice solution for cosx+cos(4x)+cos(7x)=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 cosx+cos(4x)+cos(7x)=0 equation:


Simplifying
cosx + cos(4x) + cos(7x) = 0

Remove parenthesis around (4x)
cosx + cos * 4x + cos(7x) = 0

Reorder the terms for easier multiplication:
cosx + 4cos * x + cos(7x) = 0

Multiply cos * x
cosx + 4cosx + cos(7x) = 0

Remove parenthesis around (7x)
cosx + 4cosx + cos * 7x = 0

Reorder the terms for easier multiplication:
cosx + 4cosx + 7cos * x = 0

Multiply cos * x
cosx + 4cosx + 7cosx = 0

Combine like terms: cosx + 4cosx = 5cosx
5cosx + 7cosx = 0

Combine like terms: 5cosx + 7cosx = 12cosx
12cosx = 0

Solving
12cosx = 0

Solving for variable 'c'.

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

Divide each side by '12'.
cosx = 0

Simplifying
cosx = 0

The solution to this equation could not be determined.

See similar equations:

| 2x(c-3)=15 | | 3x+y=140 | | 2c*6e= | | -4=5x-10 | | F*3/5=3 | | 25x/45=-65 | | (3x5)-(4x1/2) | | 6x+5=3x+9 | | x=x^2+4x+4 | | 4x^2-4ax+(a^2-b^2)=0 | | 9m^2-12m-4=0 | | 20x-15=18x+5 | | x^2*2x=25 | | 6x+1+4x+2+3x-5=x | | 60-30x=20-24x | | 10x+30=10 | | 4(2x+5)2(3x-2)= | | 2(4x+1)=4(2-x) | | 1/3x-2/5x=1 | | (x^1/3*x^1/5)÷((x^1/60)^4) | | v=3*4squared*12 | | 4x+8=6x+7 | | 2x+8+x=29 | | -x^2+14x=40 | | 11(x+8)=9x+11 | | 6x+19y+4+12x-6y-10= | | -4x-11=2x+25 | | x-x=y+y | | 200x-x=89x+30x | | 12m+4y-8m=9y | | 5j=6+j-2y+7 | | Sin3x/x^3 |

Equations solver categories