2cos(3x)*cos(x)=1

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


Simplifying
2cos(3x) * cos(x) = 1

Remove parenthesis around (3x)
2cos * 3x * cos(x) = 1

Reorder the terms for easier multiplication:
2 * 3cos * x * cos * x = 1

Multiply 2 * 3
6cos * x * cos * x = 1

Multiply cos * x
6cosx * cos * x = 1

Multiply cosx * cos
6c2o2s2x * x = 1

Multiply c2o2s2x * x
6c2o2s2x2 = 1

Solving
6c2o2s2x2 = 1

Solving for variable 'c'.

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

Divide each side by '6o2s2x2'.
c2 = 0.1666666667o-2s-2x-2

Simplifying
c2 = 0.1666666667o-2s-2x-2

Take the square root of each side:
c = {-0.408248291o-1s-1x-1, 0.408248291o-1s-1x-1}

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