2cos(3x)*cos(x)=-2

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


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

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

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

Multiply 2 * 3
6cos * x * cos * x = -2

Multiply cos * x
6cosx * cos * x = -2

Multiply cosx * cos
6c2o2s2x * x = -2

Multiply c2o2s2x * x
6c2o2s2x2 = -2

Solving
6c2o2s2x2 = -2

Solving for variable 'c'.

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

Divide each side by '6o2s2x2'.
c2 = -0.3333333333o-2s-2x-2

Simplifying
c2 = -0.3333333333o-2s-2x-2

Combine like terms: -0.3333333333o-2s-2x-2 + 0.3333333333o-2s-2x-2 = 0.0000000000
c2 + 0.3333333333o-2s-2x-2 = 0.0000000000

The solution to this equation could not be determined.

See similar equations:

| 3(1)-y=2(1)+y-1 | | x/8-7=9 | | 4xy-x^2+6x=0 | | 3x+2=8x+2 | | 8(t+2)=72 | | 6n^2-30n^2+24=0 | | (-55/6)=x-(x/2) | | 40=.25x | | 3z+2(4z-2)=5(3-2) | | 8x-7=2x+9 | | 3(2+2x)=18 | | 2(n+2)-8=24 | | 1/2(3a-1)=a-5 | | 4m-4/6m-20 | | 1/4(4t-9)=6 | | 5.5-8.1=-2.6 | | 4f^2-13f+9=0 | | -2(n+2)-8=24 | | .7x-2.9=.6 | | 3n+1=50 | | 6(8x+7)=48x-3 | | 34-2v=5v+6 | | y-12+3y=36 | | 8-3x/8=5/6 | | -1+s+1=5 | | 12x+7(x+1)=102 | | 3h^2+13h+12=0 | | x+y=2x-3y+5 | | 8-3x8=5/6 | | x-2h=3b | | 3x-4y-24=0 | | m=5y+6x |

Equations solver categories