Ta có: \(\left\{{}\begin{matrix}0< 24< 25\\0< 35< 36\end{matrix}\right.\)
\(\Rightarrow\left\{{}\begin{matrix}\sqrt{24}< \sqrt{25}\\\sqrt{35}< \sqrt{36}\end{matrix}\right.\)
\(\Leftrightarrow\left\{{}\begin{matrix}\sqrt{24}< 5\\\sqrt{35}< 6\end{matrix}\right.\)
\(\Rightarrow\sqrt{24}+\sqrt{35}\) < 5 + 6
\(\Leftrightarrow\) \(\sqrt{24}+\sqrt{35}\) < 11
Vậy \(\sqrt{24}+\sqrt{35}\) < 11
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