f(x)=8cos^4(x)

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Solution for f(x)=8cos^4(x) equation: 


Simplifying
f(x) = 8cos4(x)

Multiply f * x
fx = 8cos4(x)

Multiply cos4 * x
fx = 8cos4x

Solving
fx = 8cos4x

Solving for variable 'f'.

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

Divide each side by 'x'.
f = 8cos4

Simplifying
f = 8cos4

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