Cos^2x-2sin^2x=1

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


Simplifying
Cos2x + -2sin2x = 1

Reorder the terms:
-2in2sx + os2xC = 1

Solving
-2in2sx + os2xC = 1

Solving for variable 'i'.

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

Add '-1os2xC' to each side of the equation.
-2in2sx + os2xC + -1os2xC = 1 + -1os2xC

Combine like terms: os2xC + -1os2xC = 0
-2in2sx + 0 = 1 + -1os2xC
-2in2sx = 1 + -1os2xC

Divide each side by '-2n2sx'.
i = -0.5n-2s-1x-1 + 0.5n-2osC

Simplifying
i = -0.5n-2s-1x-1 + 0.5n-2osC

Reorder the terms:
i = 0.5n-2osC + -0.5n-2s-1x-1

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