Chapter 14.2, Problem 1QCE

Supply the missing integrand and limits of integration.

$\begin{array}{l}\left(\text{a}\right){\displaystyle {\int }_1^5{\displaystyle {\int }_2^{y/2}6x^{2}y}}dxdy={\displaystyle {\int }_{\boxed{}}^{\boxed{}}\text{\_\_\_\_\_\_}dy}\\ \left(\text{b}\right){\displaystyle {\int }_1^5{\displaystyle {\int }_2^{x/2}6x^{2}y}}dydx={\displaystyle {\int }_{\boxed{}}^{\boxed{}}\text{\_\_\_\_\_\_}dx}\end{array}$