Cos^4x-4cos^2x=0

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Solution for Cos^4x-4cos^2x=0 equation: 


Simplifying
Cos4x + -4cos2x = 0

Reorder the terms:
-4cos2x + os4xC = 0

Solving
-4cos2x + os4xC = 0

Solving for variable 'c'.

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

Add '-1os4xC' to each side of the equation.
-4cos2x + os4xC + -1os4xC = 0 + -1os4xC

Combine like terms: os4xC + -1os4xC = 0
-4cos2x + 0 = 0 + -1os4xC
-4cos2x = 0 + -1os4xC
Remove the zero:
-4cos2x = -1os4xC

Divide each side by '-4os2x'.
c = 0.25s2C

Simplifying
c = 0.25s2C

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