Question

Need help on #2 Please help me on my hw

Answer 1

2)

We have to find the value of

`\sqrt[]{9}`

Factor the number 9.

`\begin{gathered} \sqrt[]{9}=\sqrt[]{3*3} \\ =\sqrt[]{3^2}^{}\text{ ---(1)} \end{gathered}`

According to radical rule,

`\sqrt[]{a^2}=a\text{ , a}\ge0`

Applying the radical rule to right hand side of equation (1),

`\sqrt[]{9}=3`

Therefore, the correct expression is,

`\sqrt[]{9}=3`