z^2+2*z*cos(a)-sin^2(a)-I=0

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Solution for z^2+2*z*cos(a)-sin^2(a)-I=0 equation:


Simplifying
z2 + 2z * cos(a) + -1sin2(a) + -1I = 0

Multiply z * cos
z2 + 2cosz * a + -1sin2(a) + -1I = 0

Multiply cosz * a
z2 + 2acosz + -1sin2(a) + -1I = 0

Multiply in2s * a
z2 + 2acosz + -1ain2s + -1I = 0

Reorder the terms:
-1I + 2acosz + -1ain2s + z2 = 0

Solving
-1I + 2acosz + -1ain2s + z2 = 0

Solving for variable 'I'.

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

Add '-2acosz' to each side of the equation.
-1I + 2acosz + -1ain2s + -2acosz + z2 = 0 + -2acosz

Reorder the terms:
-1I + 2acosz + -2acosz + -1ain2s + z2 = 0 + -2acosz

Combine like terms: 2acosz + -2acosz = 0
-1I + 0 + -1ain2s + z2 = 0 + -2acosz
-1I + -1ain2s + z2 = 0 + -2acosz
Remove the zero:
-1I + -1ain2s + z2 = -2acosz

Add 'ain2s' to each side of the equation.
-1I + -1ain2s + ain2s + z2 = -2acosz + ain2s

Combine like terms: -1ain2s + ain2s = 0
-1I + 0 + z2 = -2acosz + ain2s
-1I + z2 = -2acosz + ain2s

Add '-1z2' to each side of the equation.
-1I + z2 + -1z2 = -2acosz + ain2s + -1z2

Combine like terms: z2 + -1z2 = 0
-1I + 0 = -2acosz + ain2s + -1z2
-1I = -2acosz + ain2s + -1z2

Divide each side by '-1'.
I = 2acosz + -1ain2s + z2

Simplifying
I = 2acosz + -1ain2s + z2

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