Cos^2x=2cosx-1

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Solution for Cos^2x=2cosx-1 equation: 


Simplifying
Cos2x = 2cosx + -1

Reorder the terms:
os2xC = -1 + 2cosx

Solving
os2xC = -1 + 2cosx

Solving for variable 'o'.

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

Add '-2cosx' to each side of the equation.
-2cosx + os2xC = -1 + 2cosx + -2cosx

Combine like terms: 2cosx + -2cosx = 0
-2cosx + os2xC = -1 + 0
-2cosx + os2xC = -1

Reorder the terms:
1 + -2cosx + os2xC = -1 + 1

Combine like terms: -1 + 1 = 0
1 + -2cosx + os2xC = 0

The solution to this equation could not be determined.

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