4cos^2(3x)=1

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Solution for 4cos^2(3x)=1 equation: 


Simplifying
4cos2(3x) = 1

Remove parenthesis around (3x)
4cos2 * 3x = 1

Reorder the terms for easier multiplication:
4 * 3cos2 * x = 1

Multiply 4 * 3
12cos2 * x = 1

Multiply cos2 * x
12cos2x = 1

Solving
12cos2x = 1

Solving for variable 'c'.

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

Divide each side by '12os2x'.
c = 0.08333333333o-1s-2x-1

Simplifying
c = 0.08333333333o-1s-2x-1

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