Resposta :
Resposta:
[tex]9.1= 9\\9.2 =18\\9.3 =27\\9.4 =36\\9.5 =45\\9.6 =54\\9.7 =63\\9.8 =72\\9.9 =81\\9.10 = 90\\[/tex]
[tex]\sqrt{81}=\\9\\9x9= 81\\9*9= 81\\9.9= 81[/tex]
Resposta:
[tex]\textsf{Segue a resposta abaixo}[/tex]
Explicação passo-a-passo:
[tex]\begin{array}{c|c}\sf81&\sf3\\\sf27&\sf3\\\sf9&\sf3\\\sf3&\sf3\\\sf1\end{array}[/tex]
[tex] \mathsf{\sqrt{81}=\sqrt{3^2\cdot3^2} }[/tex]
[tex] \mathsf{\sqrt{81}=3\cdot3 }[/tex]
[tex]\boxed{\boxed{ \mathsf{ \sqrt{81}=9}}}[/tex]