f(x)=x^4*cosx

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Solution for f(x)=x^4*cosx equation: 


Simplifying
f(x) = x4 * cosx

Multiply f * x
fx = x4 * cosx

Multiply x4 * cosx
fx = cosx5

Solving
fx = cosx5

Solving for variable 'f'.

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

Divide each side by 'x'.
f = cosx4

Simplifying
f = cosx4

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