\begin{equation*}
\int_a^b f(x) \: dx = F(b) - F(a)
\end{equation*}
Contoh
\begin{equation*}
\begin{split}
& \int_1^2 3x^2 - 2x + 5 \: dx \\\\
& \left[x^3 - x^2 + 5x\right]_1^2 \\\\
& (2^3 - 2^2 + 5 \:.\: 2) - (1^3 - 1^2 + 5 \:.\: 1) \\\\
& 9
\end{split}
\end{equation*}