Answer:
b. [tex]\frac{1}{y^3}[/tex]
Step-by-step explanation:
Here we are given [tex]y^{-3}[/tex] and are asked to simplify it. We are going to apply the law of exponents which says that
[tex]a^{-n}=\frac{1}{a^n}[/tex]
Hence applying this rule in our problem we get, where a=y and n=3
[tex]y^{-3}=\frac{1}{y^3}[/tex]
Hence our C) Option is correct
