Cos^3x-cos(x)=0

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Solution for Cos^3x-cos(x)=0 equation: 


Simplifying
Cos3x + -1cos(x) = 0

Multiply cos * x
os3xC + -1cosx = 0

Reorder the terms:
-1cosx + os3xC = 0

Solving
-1cosx + os3xC = 0

Solving for variable 'c'.

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

Add '-1os3xC' to each side of the equation.
-1cosx + os3xC + -1os3xC = 0 + -1os3xC

Combine like terms: os3xC + -1os3xC = 0
-1cosx + 0 = 0 + -1os3xC
-1cosx = 0 + -1os3xC
Remove the zero:
-1cosx = -1os3xC

Divide each side by '-1osx'.
c = s2C

Simplifying
c = s2C

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