f(x)=5cos^2(x)

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Solution for f(x)=5cos^2(x) equation: 


Simplifying
f(x) = 5cos2(x)

Multiply f * x
fx = 5cos2(x)

Multiply cos2 * x
fx = 5cos2x

Solving
fx = 5cos2x

Solving for variable 'f'.

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

Divide each side by 'x'.
f = 5cos2

Simplifying
f = 5cos2

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