# What is the derivative of $C\,f(x)$ where $C$ is a constant and $f(x)$ is differentiable.

## Primary tabs

Problem:

Show that

\[

\frac{d}{dx}\left[C\,f(x)\right]=C\,\frac{df}{dx}.

\]

Answer:

\[C\,\frac{df}{dx}\]

Problem:

Show that

\[

\frac{d}{dx}\left[C\,f(x)\right]=C\,\frac{df}{dx}.

\]

Answer:

\[C\,\frac{df}{dx}\]