f(x)=-2senx

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Solution for f(x)=-2senx equation: 


Simplifying
f(x) = -2senx

Multiply f * x
fx = -2senx

Solving
fx = -2ensx

Solving for variable 'f'.

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

Divide each side by 'x'.
f = -2ens

Simplifying
f = -2ens

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