1+2*cos(4x)=0

Simple and best practice solution for 1+2*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 1+2*cos(4x)=0 equation:


Simplifying
1 + 2cos(4x) = 0

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

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

Multiply 2 * 4
1 + 8cos * x = 0

Multiply cos * x
1 + 8cosx = 0

Solving
1 + 8cosx = 0

Solving for variable 'c'.

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

Add '-1' to each side of the equation.
1 + -1 + 8cosx = 0 + -1

Combine like terms: 1 + -1 = 0
0 + 8cosx = 0 + -1
8cosx = 0 + -1

Combine like terms: 0 + -1 = -1
8cosx = -1

Divide each side by '8osx'.
c = -0.125o-1s-1x-1

Simplifying
c = -0.125o-1s-1x-1

See similar equations:

| 9x-7=2x+5+3x | | 8m^2=12m | | 95=7t-10 | | -16t+14t+4=0 | | =3xy-6x(y-z) | | 5+6a=(-115) | | 7a+13=62 | | x^2-kx-x+k+1=0 | | (13m+5)-(11m-7)= | | x^2+kx+x-k-1=0 | | 3x+21=2x+38 | | (8y-5)+(-3y-5)= | | p^2-20=p | | 3-3b=(-21) | | 7/8=x/12.5 | | (x+3)+(5x+3)= | | (13-x)/1.5=x | | =5x+10x(b+c) | | 26=5t-4 | | 3.4t+6.88=-9.10 | | x+1=9x-31 | | 6+2-b(3b-8b)-8= | | 5a-17=13 | | 2x-14x= | | .45(40)+.8x=.3(40+x) | | 3c-4bc+(-7v)+3[2bc-(-b)]= | | 6x+6-5x=2x+6 | | 3n+15=48 | | x^2+kx-x-k-1=0 | | 1-3x=(-5) | | 5x+18=33 | | =4u-3(2u-5v) |

Equations solver categories