Problem $6$: $(10$ marks$)$ The figure shows the region $of$ integration for the integral

${\displaystyle \underset{0}{\overset{1}{}}}{\displaystyle \underset{\sqrt[\phantom{2}]{x}}{\overset{1}{}}}{\displaystyle \underset{0}{\overset{1-y}{}}}f(x,y,z)dzdyd$

rewrite the integral $in$ the other five orders.