Question

qual o resultado da conta(2-√1/9)²

Answer 1

$\left(2-\sqrt{\frac{1}{9}}\right)^2=\left(2-\frac{1}{3}\right)^2=\left(\frac{6-1}{3}\right)^2=\left(\frac{5}{3}\right)^2=\frac{25}{9}$