3cos^3(x)=3cos(x)

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


Simplifying
3cos3(x) = 3cos(x)

Multiply cos3 * x
3cos3x = 3cos(x)

Multiply cos * x
3cos3x = 3cosx

Solving
3cos3x = 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.
-3cosx + 3cos3x = 3cosx + -3cosx

Combine like terms: 3cosx + -3cosx = 0
-3cosx + 3cos3x = 0

Factor out the Greatest Common Factor (GCF), '3cosx'.
3cosx(-1 + s2) = 0

Factor a difference between two squares.
3cosx((1 + s)(-1 + s)) = 0

Ignore the factor 3.

Subproblem 1

Set the factor 'cosx' equal to zero and attempt to solve: Simplifying cosx = 0 Solving cosx = 0 Move all terms containing c to the left, all other terms to the right. Simplifying cosx = 0 The solution to this equation could not be determined. This subproblem is being ignored because a solution could not be determined.

Subproblem 2

Set the factor '(1 + s)' equal to zero and attempt to solve: Simplifying 1 + s = 0 Solving 1 + s = 0 Move all terms containing c to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + s = 0 + -1 Combine like terms: 1 + -1 = 0 0 + s = 0 + -1 s = 0 + -1 Combine like terms: 0 + -1 = -1 s = -1 Add '-1s' to each side of the equation. s + -1s = -1 + -1s Combine like terms: s + -1s = 0 0 = -1 + -1s Simplifying 0 = -1 + -1s The solution to this equation could not be determined. This subproblem is being ignored because a solution could not be determined.

Subproblem 3

Set the factor '(-1 + s)' equal to zero and attempt to solve: Simplifying -1 + s = 0 Solving -1 + s = 0 Move all terms containing c to the left, all other terms to the right. Add '1' to each side of the equation. -1 + 1 + s = 0 + 1 Combine like terms: -1 + 1 = 0 0 + s = 0 + 1 s = 0 + 1 Combine like terms: 0 + 1 = 1 s = 1 Add '-1s' to each side of the equation. s + -1s = 1 + -1s Combine like terms: s + -1s = 0 0 = 1 + -1s Simplifying 0 = 1 + -1s The solution to this equation could not be determined. This subproblem is being ignored because a solution could not be determined. The solution to this equation could not be determined.

See similar equations:

| x+4(3)=x+2(5) | | 6d-5-d= | | 15x+80x-10=19(5x+15) | | C/4-3=8 | | -.6t^2+4.8t=0 | | 0=4x^2+25x-21 | | 1.5-5x=11.0 | | 4y+x=-12 | | n+19=13 | | (2x^2-6x+7)-(4x^2+x-9)+(5x^2+3x-8)= | | -3(3x-6)=-9x-18 | | 0=-5T^2+37t+72 | | y=2x^2-3x+6 | | 8-8x-x^2=0 | | (2-2y+4u)(-9)= | | 0=4x^2+32x+15 | | Y-3=5-2y | | 10x+8.25=99 | | lx-3l=5x-5 | | 5x=x-14 | | 3x+y=10x-1 | | 8.25+10=99 | | W+0.04W=10.92 | | H(1)=-4.9(1)t^2+7(1)+0.6 | | (-4x+5)(-2x+7)= | | 6x+3y+8z=54 | | 12ab-4a^2(b)=0 | | -4x-6x=10-70 | | .9+m=1.1 | | 4b+2b-4=14 | | 4x^2-5x+20-(4x^2+10x)= | | .45x+.1x=x-27 |

Equations solver categories