cos(2x)=3+5

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Solution for cos(2x)=3+5 equation: 


Simplifying
cos(2x) = 3 + 5

Remove parenthesis around (2x)
cos * 2x = 3 + 5

Reorder the terms for easier multiplication:
2cos * x = 3 + 5

Multiply cos * x
2cosx = 3 + 5

Combine like terms: 3 + 5 = 8
2cosx = 8

Solving
2cosx = 8

Solving for variable 'c'.

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

Divide each side by '2osx'.
c = 4o-1s-1x-1

Simplifying
c = 4o-1s-1x-1

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