-cos(2x)-cosx=0

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Solution for -cos(2x)-cosx=0 equation:


Simplifying
-1cos(2x) + -1cosx = 0

Remove parenthesis around (2x)
-1cos * 2x + -1cosx = 0

Reorder the terms for easier multiplication:
-1 * 2cos * x + -1cosx = 0

Multiply -1 * 2
-2cos * x + -1cosx = 0

Multiply cos * x
-2cosx + -1cosx = 0

Combine like terms: -2cosx + -1cosx = -3cosx
-3cosx = 0

Solving
-3cosx = 0

Solving for variable 'c'.

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

Divide each side by '-3'.
cosx = 0

Simplifying
cosx = 0

The solution to this equation could not be determined.

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