3cos(2x)=3cos(x)

Simple and best practice solution for 3cos(2x)=3cos(x) 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 3cos(2x)=3cos(x) equation:


Simplifying
3cos(2x) = 3cos(x)

Remove parenthesis around (2x)
3cos * 2x = 3cos(x)

Reorder the terms for easier multiplication:
3 * 2cos * x = 3cos(x)

Multiply 3 * 2
6cos * x = 3cos(x)

Multiply cos * x
6cosx = 3cos(x)

Multiply cos * x
6cosx = 3cosx

Solving
6cosx = 3cosx

Solving for variable 'c'.

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

Add '-3cosx' to each side of the equation.
6cosx + -3cosx = 3cosx + -3cosx

Combine like terms: 6cosx + -3cosx = 3cosx
3cosx = 3cosx + -3cosx

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

Divide each side by '3'.
cosx = 0

Simplifying
cosx = 0

The solution to this equation could not be determined.

See similar equations:

| 7t+y=2v | | 5a=9+2a | | 6x^2+7x-24= | | y=10y-3 | | 0.3621+0.4795= | | 2x-(-2x-7)=-1 | | 117x=936 | | 4s+3*2s+2*35=33.76 | | 3-3x*6+2= | | 17x=104 | | x+4=5x+4 | | 2t^2+15t+1650=0 | | a/3+6=10 | | 0.5x+0.25(50)=0.25(92) | | 12r+5+7s-3+12s-3= | | 2x-7+2x=7 | | 4x^2-1x-18= | | f(x)=2x^2+x-3 | | 42=3.5v | | 15+(7-x)=40 | | 10h-10=100 | | 2x=2046 | | 5x+4=-2x+53 | | 5x-4=-2x+53 | | 10h+5=25 | | -b^8*-7w^5= | | 0.14(y-8)+0.16y=0.20y-0.05(30) | | 0.5(16-2x)=-1 | | x/7+9=-5 | | 7x+2(-3x+3)=1 | | z/7+3=5 | | 5y-13=21 |

Equations solver categories