cosA=-1

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Solution for cosA=-1 equation: 


Simplifying
cosA = -1

Solving
cosA = -1

Solving for variable 'c'.

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

Divide each side by 'osA'.
c = -1o-1s-1A-1

Simplifying
c = -1o-1s-1A-1

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