2sin^2x-4sinx=cos^2x-2

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Solution for 2sin^2x-4sinx=cos^2x-2 equation: 


Simplifying
2sin2x + -4sinx = cos2x + -2

Reorder the terms:
-4insx + 2in2sx = cos2x + -2

Reorder the terms:
-4insx + 2in2sx = -2 + cos2x

Solving
-4insx + 2in2sx = -2 + cos2x

Solving for variable 'i'.

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

Reorder the terms:
2 + -1cos2x + -4insx + 2in2sx = -2 + cos2x + 2 + -1cos2x

Reorder the terms:
2 + -1cos2x + -4insx + 2in2sx = -2 + 2 + cos2x + -1cos2x

Combine like terms: -2 + 2 = 0
2 + -1cos2x + -4insx + 2in2sx = 0 + cos2x + -1cos2x
2 + -1cos2x + -4insx + 2in2sx = cos2x + -1cos2x

Combine like terms: cos2x + -1cos2x = 0
2 + -1cos2x + -4insx + 2in2sx = 0

The solution to this equation could not be determined.

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