Cos(4x)+cos(8x)=cos(6x)

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Solution for Cos(4x)+cos(8x)=cos(6x) equation:


Simplifying
Cos(4x) + cos(8x) = cos(6x)

Remove parenthesis around (4x)
osC * 4x + cos(8x) = cos(6x)

Reorder the terms for easier multiplication:
4osC * x + cos(8x) = cos(6x)

Multiply osC * x
4osxC + cos(8x) = cos(6x)

Remove parenthesis around (8x)
4osxC + cos * 8x = cos(6x)

Reorder the terms for easier multiplication:
4osxC + 8cos * x = cos(6x)

Multiply cos * x
4osxC + 8cosx = cos(6x)

Reorder the terms:
8cosx + 4osxC = cos(6x)

Remove parenthesis around (6x)
8cosx + 4osxC = cos * 6x

Reorder the terms for easier multiplication:
8cosx + 4osxC = 6cos * x

Multiply cos * x
8cosx + 4osxC = 6cosx

Solving
8cosx + 4osxC = 6cosx

Solving for variable 'c'.

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

Add '-6cosx' to each side of the equation.
8cosx + -6cosx + 4osxC = 6cosx + -6cosx

Combine like terms: 8cosx + -6cosx = 2cosx
2cosx + 4osxC = 6cosx + -6cosx

Combine like terms: 6cosx + -6cosx = 0
2cosx + 4osxC = 0

Add '-4osxC' to each side of the equation.
2cosx + 4osxC + -4osxC = 0 + -4osxC

Combine like terms: 4osxC + -4osxC = 0
2cosx + 0 = 0 + -4osxC
2cosx = 0 + -4osxC
Remove the zero:
2cosx = -4osxC

Divide each side by '2osx'.
c = -2C

Simplifying
c = -2C

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