f(x)=x+1-cos(2x)

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Solution for f(x)=x+1-cos(2x) equation: 


Simplifying
f(x) = x + 1 + -1cos(2x)

Multiply f * x
fx = x + 1 + -1cos(2x)

Remove parenthesis around (2x)
fx = x + 1 + -1cos * 2x

Reorder the terms for easier multiplication:
fx = x + 1 + -1 * 2cos * x

Multiply -1 * 2
fx = x + 1 + -2cos * x

Multiply cos * x
fx = x + 1 + -2cosx

Reorder the terms:
fx = 1 + -2cosx + x

Solving
fx = 1 + -2cosx + x

Solving for variable 'f'.

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

Divide each side by 'x'.
f = x-1 + -2cos + 1

Simplifying
f = x-1 + -2cos + 1

Reorder the terms:
f = 1 + -2cos + x-1

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