`f(x) = x^3 - 2x + 3x^-3` Find the derivative of the function.

Expert Answers
kalau eNotes educator| Certified Educator

Use the power rule for each term.  Derive each term.

`d/dx x^n= nx^(n-1)`

 

`f'(x) = 3x^2 -2 -9x^-4`

Eliminate all negative exponents.

The answer is:

`f'(x) = 3x^2 -2 -9/x^4`