Find the volume under z=xyz = xyz=xy over the region DDD defined by 0≤x≤10 \le x \le 10≤x≤1 and 0≤y≤x0 \le y \le x0≤y≤x.
14\frac{1}{4}41
16\frac{1}{6}61
18\frac{1}{8}81
111