cos(9x)-cos(7x)=0

Simple and best practice solution for cos(9x)-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 cos(9x)-cos(7x)=0 equation:


Simplifying
cos(9x) + -1cos(7x) = 0

Remove parenthesis around (9x)
cos * 9x + -1cos(7x) = 0

Reorder the terms for easier multiplication:
9cos * x + -1cos(7x) = 0

Multiply cos * x
9cosx + -1cos(7x) = 0

Remove parenthesis around (7x)
9cosx + -1cos * 7x = 0

Reorder the terms for easier multiplication:
9cosx + -1 * 7cos * x = 0

Multiply -1 * 7
9cosx + -7cos * x = 0

Multiply cos * x
9cosx + -7cosx = 0

Combine like terms: 9cosx + -7cosx = 2cosx
2cosx = 0

Solving
2cosx = 0

Solving for variable 'c'.

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

Divide each side by '2'.
cosx = 0

Simplifying
cosx = 0

The solution to this equation could not be determined.

See similar equations:

| 3x+2x+8=6 | | -156=-6(8n-6) | | -3x/5=20 | | 3(y-5)-8y=6 | | 14+9v=11v | | 6x+12=10x+8 | | x-21=42 | | 2u=30-3u | | 12(X+4)=4(3x+2)+10 | | 42=x+5x | | -6(3x-11-5x)-4(3x(2x-2)-1)=8x-12(7x-4-5x) | | 6+3x=-7x | | 10x+7x=17 | | 2y^2-15=65 | | 6z-16=2z | | 2x+5+3x=60 | | 6x-60/2=15 | | Y=4/5÷1/10 | | 18-36n=198 | | 4x-14/2=35 | | 3x+60=2x+5 | | (X+1)2-7=3x(2x-3) | | z^2-2z=j | | 120=2(x+y) | | 5w=56-3w | | -4(n+3)+15=-2n-7 | | x^2+0.5x-4=0 | | 8/13x=16 | | X^4-X*0.80=0 | | y+1.75y=90 | | (-3-x^2)(5-x^2)= | | X+1.61=7.18 |

Equations solver categories