cos^2(xy)+sin^2(xy)=1

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Solution for cos^2(xy)+sin^2(xy)=1 equation: 


Simplifying
cos2(xy) + sin2(xy) = 1

Multiply cos2 * xy
cos2xy + sin2(xy) = 1

Multiply in2s * xy
cos2xy + in2sxy = 1

Solving
cos2xy + in2sxy = 1

Solving for variable 'c'.

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

Add '-1in2sxy' to each side of the equation.
cos2xy + in2sxy + -1in2sxy = 1 + -1in2sxy

Combine like terms: in2sxy + -1in2sxy = 0
cos2xy + 0 = 1 + -1in2sxy
cos2xy = 1 + -1in2sxy

Divide each side by 'os2xy'.
c = o-1s-2x-1y-1 + -1in2o-1s-1

Simplifying
c = o-1s-2x-1y-1 + -1in2o-1s-1

Reorder the terms:
c = -1in2o-1s-1 + o-1s-2x-1y-1

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