Cos(4x)=-.75

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Solution for Cos(4x)=-.75 equation: 


Simplifying
Cos(4x) = -0.75

Remove parenthesis around (4x)
osC * 4x = -0.75

Reorder the terms for easier multiplication:
4osC * x = -0.75

Multiply osC * x
4osxC = -0.75

Solving
4osxC = -0.75

Solving for variable 'o'.

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

Divide each side by '4sxC'.
o = -0.1875s-1x-1C-1

Simplifying
o = -0.1875s-1x-1C-1

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