cosz=-2

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Solution for cosz=-2 equation: 


Simplifying
cosz = -2

Solving
cosz = -2

Solving for variable 'c'.

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

Divide each side by 'osz'.
c = -2o-1s-1z-1

Simplifying
c = -2o-1s-1z-1

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