Question

Question 1 Which expression is equivalent to r-1.y? a Ob y? Ос ty-2 Od xy2

Answer 1

Step 1

State a law of indices that can be used to simplify the problem

`\begin{gathered} a^{-1\text{ }}=(1)/(a^(-1)) \\ \end{gathered}`

Step 2

Apply this to the question and get the solution

`\begin{gathered} x^{-1\text{ }}=\text{ }(1)/(x) \\ \text{Hence} \\ (1)/(x).y^2^{} \\ =(y^2)/(x) \end{gathered}`

Hence option B