Question

So sánh các số \(\sqrt{\dfrac{10}{17}}và\dfrac{3}{4}\)

 

Answer 1

Ta có \(\dfrac{3}{4}=\sqrt{\dfrac{9}{16}}< \sqrt{\dfrac{10}{17}}\Rightarrow\dfrac{3}{4}< \sqrt{\dfrac{10}{17}}\)

Answer 2

\(\sqrt{\dfrac{10}{17}}< \sqrt{\dfrac{9}{16}}\)

mà \(\sqrt{\dfrac{9}{16}}=\dfrac{3}{4}\)

nên \(\sqrt{\dfrac{10}{17}}< \dfrac{3}{4}\)