Question

quais são os números intenriores maiores que √0,81 e menores que √2,25

Answer 1

$\sqrt{0.81}=\sqrt{\dfrac{81}{100}}=\dfrac{\sqrt{81}}{\sqrt{100}}=\dfrac{9}{10}=0.9\\\\\sqrt{2.25}=\sqrt{\dfrac{225}{100}}=\dfrac{\sqrt{225}}{\sqrt{100}}=\dfrac{15}{10}=1.5\\\\ 0.9\ \textless \ x\ \textless \ 1.5$