[tex]\huge\color{black}\tt{Answer :} \\ \\ 1[/tex]
Step-by-step explanation:
[tex] any \: expression \: divided \: by \\ \: it \: self \: equals \: 1\\ \\ \frac{z {}^{3} }{z {}^{3} } \\ \\ \large\red {{ 1}}[/tex]
