Question

Which of the following does (17) simplify to, for any nonnegative realnumber r?

Answer 1

r (option A)

Step-by-step explanation:
`(\sqrt[]{r})^2`

If the values of r are non negative, let r = 6

`\begin{gathered} (\sqrt[]{6})^2\text{ = 6} \\ \text{The square cancels the square root} \end{gathered}`

Hence, in this case the square cancels the square root and the result will be r.

So, for any non negative value of (√r²), the result is r (option A)