
9.1.23 Double integrals
Problem:
Find the double integral over the area \( D \), bounded by the indicated lines:
\[
\begin{array}{l}
\iint_{D}\left(24 x y+18 x^{2} y^{2}\right) d x d y, \\
D: x=1, \quad y=x^{3}, \quad y=-\sqrt[3]{x} .
\end{array}
\]