Question

Find the derivative of the function f(x)=5/x^4
at the point x=3.
f'(3)= ______

Answer 1

Do you know the quotient rule?

Answer 2

Then f'(3) by plugging x=3 inf'(x)

Answer 3

\[f(x)=5x ^{-4}\]
find f'(x)
\[\frac{ d }{ dx }\left( x \right)^{n}=nx ^{n-1}\]

Answer 4

thank you for helping me on this one!

Answer 5

yw