cos(3x)+9cos(x)=4

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Solution for cos(3x)+9cos(x)=4 equation:


Simplifying
cos(3x) + 9cos(x) = 4

Remove parenthesis around (3x)
cos * 3x + 9cos(x) = 4

Reorder the terms for easier multiplication:
3cos * x + 9cos(x) = 4

Multiply cos * x
3cosx + 9cos(x) = 4

Multiply cos * x
3cosx + 9cosx = 4

Combine like terms: 3cosx + 9cosx = 12cosx
12cosx = 4

Solving
12cosx = 4

Solving for variable 'c'.

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

Divide each side by '12osx'.
c = 0.3333333333o-1s-1x-1

Simplifying
c = 0.3333333333o-1s-1x-1

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