Question

Simplify y^-3 a.3/y b.1/y^3 c.-3y d.-1/y^3

Answer 1

Answer:

b. $\frac{1}{y^3}$

Step-by-step explanation:

Here we are given  $y^{-3}$ and are asked to simplify it. We are going to apply the law of exponents which says that

$a^{-n}=\frac{1}{a^n}$

Hence applying this rule in our problem we get, where a=y and n=3

$y^{-3}=\frac{1}{y^3}$

Hence our C) Option is correct