-2cos^2=cosx-1

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Solution for -2cos^2=cosx-1 equation:


Simplifying
-2cos2 = cosx + -1

Reorder the terms:
-2cos2 = -1 + cosx

Solving
-2cos2 = -1 + cosx

Solving for variable 'c'.

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

Add '-1cosx' to each side of the equation.
-1cosx + -2cos2 = -1 + cosx + -1cosx

Combine like terms: cosx + -1cosx = 0
-1cosx + -2cos2 = -1 + 0
-1cosx + -2cos2 = -1

Reorder the terms:
1 + -1cosx + -2cos2 = -1 + 1

Combine like terms: -1 + 1 = 0
1 + -1cosx + -2cos2 = 0

The solution to this equation could not be determined.

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