4-8cos(2x)=0

Simple and best practice solution for 4-8cos(2x)=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 4-8cos(2x)=0 equation:


Simplifying
4 + -8cos(2x) = 0

Remove parenthesis around (2x)
4 + -8cos * 2x = 0

Reorder the terms for easier multiplication:
4 + -8 * 2cos * x = 0

Multiply -8 * 2
4 + -16cos * x = 0

Multiply cos * x
4 + -16cosx = 0

Solving
4 + -16cosx = 0

Solving for variable 'c'.

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

Add '-4' to each side of the equation.
4 + -4 + -16cosx = 0 + -4

Combine like terms: 4 + -4 = 0
0 + -16cosx = 0 + -4
-16cosx = 0 + -4

Combine like terms: 0 + -4 = -4
-16cosx = -4

Divide each side by '-16osx'.
c = 0.25o-1s-1x-1

Simplifying
c = 0.25o-1s-1x-1

See similar equations:

| 2(n-3)=5.2x+12.3 | | 10(x+3)-14x=5(x+30) | | 6v^2-294=0 | | X*x+25x-150=0 | | 7(8x+6)=5(8x+2) | | 18+5x=-6(5x-3) | | 5c^2-320=0 | | 12(x+6)-16x=4(x+30) | | 112r+6=5 | | 12-13x=6-10x | | 3+x-8=14 | | 12(x+6)-6x=4(x+10) | | 5x+62+37=3x+47 | | -8n-27=5(3-3n) | | 4(x+6)-6x=4(x+10) | | -3(r+8)=-41 | | 6x+20=x+100 | | -3v=57 | | 5(-3)+4-2x=-(-3+8) | | 4(x+6)-6x=2(x+10) | | -8=n+12 | | 7(x+6)-6x=2(x+10) | | (5c-2b)+(7+9c)= | | 4x-7+6x+9=264 | | 7(x+6)-6x=7(x+10) | | -3(r+2)=-52 | | -4+r=6+1+3r+1 | | -5(1+4x)=-7x-(6x+5) | | 7(x+6)-6x=6(x+10) | | 7(x+6)-6x=4(x+10) | | (3w)1/3=(3/7)1/3 | | -3(n+8)=-16+n |

Equations solver categories