Cos(4x)-3cos(2x)=4

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Solution for Cos(4x)-3cos(2x)=4 equation: 


Simplifying
Cos(4x) + -3cos(2x) = 4

Remove parenthesis around (4x)
osC * 4x + -3cos(2x) = 4

Reorder the terms for easier multiplication:
4osC * x + -3cos(2x) = 4

Multiply osC * x
4osxC + -3cos(2x) = 4

Remove parenthesis around (2x)
4osxC + -3cos * 2x = 4

Reorder the terms for easier multiplication:
4osxC + -3 * 2cos * x = 4

Multiply -3 * 2
4osxC + -6cos * x = 4

Multiply cos * x
4osxC + -6cosx = 4

Reorder the terms:
-6cosx + 4osxC = 4

Solving
-6cosx + 4osxC = 4

Solving for variable 'c'.

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

Add '-4osxC' to each side of the equation.
-6cosx + 4osxC + -4osxC = 4 + -4osxC

Combine like terms: 4osxC + -4osxC = 0
-6cosx + 0 = 4 + -4osxC
-6cosx = 4 + -4osxC

Divide each side by '-6osx'.
c = -0.6666666667o-1s-1x-1 + 0.6666666667C

Simplifying
c = -0.6666666667o-1s-1x-1 + 0.6666666667C

Reorder the terms:
c = 0.6666666667C + -0.6666666667o-1s-1x-1

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