-cos(2x)-cos(x)=1

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Solution for -cos(2x)-cos(x)=1 equation: 


Simplifying
-1cos(2x) + -1cos(x) = 1

Remove parenthesis around (2x)
-1cos * 2x + -1cos(x) = 1

Reorder the terms for easier multiplication:
-1 * 2cos * x + -1cos(x) = 1

Multiply -1 * 2
-2cos * x + -1cos(x) = 1

Multiply cos * x
-2cosx + -1cos(x) = 1

Multiply cos * x
-2cosx + -1cosx = 1

Combine like terms: -2cosx + -1cosx = -3cosx
-3cosx = 1

Solving
-3cosx = 1

Solving for variable 'c'.

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

Divide each side by '-3osx'.
c = -0.3333333333o-1s-1x-1

Simplifying
c = -0.3333333333o-1s-1x-1

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