Question

calcule a raiz quadrada aproximada de 10​

Answer 1

$\implies\boxed{\tt\sqrt n\approxeq \dfrac{n+Q}{2\sqrt Q}}$

$\iff\sqrt{10}\approxeq\dfrac{10+9}{2\sqrt9}$

$\iff\sqrt{10}\approxeq \dfrac{19}{2\cdot3}$

$\iff \sqrt{10}\approxeq \dfrac{19}{6}$

$\iff\bf \sqrt{10}\approxeq 3{,}16$