Answer:
[tex]\frac{1}{y^9}[/tex]
Step-by-step explanation:
Exponent rule → [tex]a^{-b}=\frac{1}{a^b}[/tex]
Using exponent rule → [tex]y^{-9}=\frac{1}{y^9}[/tex]
Final result → [tex]=\frac{1}{y^9}[/tex]
