I.14 Triple Integrals

Condition: Find the value of the repeated integral: \ [i = \ int _ _}^{r} d X \ int _ {-\ squrt {r^{2} -x}} {\ sqrt {2 {2} -x {2}}} D Y Y. \ int_ {0}^{\ sqrt {r^{2} -x^{2-}-y^{2}} \ frac {d z} {qrt {z}} \]