Paragraph
Let
\(f_1, f_2,\ldots, f_n\)
be differentiable functions. Prove, using induction, that
\begin{equation*} (f_1 + f_2 + \cdots + f_n)' = f_1' + f_2' + \cdots + f_n'\text{.} \end{equation*}
in-context