cos^2(3y)=.75

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Solution for cos^2(3y)=.75 equation: 


Simplifying
cos2(3y) = 0.75

Remove parenthesis around (3y)
cos2 * 3y = 0.75

Reorder the terms for easier multiplication:
3cos2 * y = 0.75

Multiply cos2 * y
3cos2y = 0.75

Solving
3cos2y = 0.75

Solving for variable 'c'.

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

Divide each side by '3os2y'.
c = 0.25o-1s-2y-1

Simplifying
c = 0.25o-1s-2y-1

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