f(x)=3cos(pix)

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Solution for f(x)=3cos(pix) equation: 


Simplifying
f(x) = 3cos(pix)

Multiply f * x
fx = 3cos(pix)

Multiply cos * ipx
fx = 3ciopsx

Solving
fx = 3ciopsx

Solving for variable 'f'.

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

Divide each side by 'x'.
f = 3ciops

Simplifying
f = 3ciops

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