Answer:
[tex]{(\frac{7}{9})}[/tex]
Step-by-step explanation:
we have
[tex]\sqrt{\frac{49}{81}}[/tex]
we know that
[tex]\frac{49}{81}=(\frac{7}{9})^{2}[/tex]
substitute
[tex]\sqrt{\frac{49}{81}}=\sqrt{(\frac{7}{9})^{2}}={(\frac{7}{9})^{2/2}}={(\frac{7}{9})}[/tex]
