Answer: [tex]\sqrt[]{\frac{1}{3} }[/tex]
Step-by-step explanation:
[tex]x=\frac{1}{9}[/tex]
[tex]\sqrt[]{3x}[/tex]
[tex]\sqrt[]{3(\frac{1}{9}) }[/tex]
[tex]\sqrt[]{\frac{1}{3} }[/tex]