-sin^2(x)=2cos(x)-2

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Solution for -sin^2(x)=2cos(x)-2 equation: 


Simplifying
-1sin2(x) = 2cos(x) + -2

Multiply in2s * x
-1in2sx = 2cos(x) + -2

Multiply cos * x
-1in2sx = 2cosx + -2

Reorder the terms:
-1in2sx = -2 + 2cosx

Solving
-1in2sx = -2 + 2cosx

Solving for variable 'i'.

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

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

Simplifying
i = 2n-2s-1x-1 + -2cn-2o

Reorder the terms:
i = -2cn-2o + 2n-2s-1x-1

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