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![](https://rs.olm.vn/images/avt/0.png?1311)
Đặt \(A=\sqrt{50}+\sqrt{26}+1\)
Ta thấy: \(\sqrt{50}>\sqrt{49}=7,\sqrt{26}>\sqrt{25}=5\)
\(\Rightarrow A>\sqrt{49}+\sqrt{25}+1=7+5+1=13\left(1\right)\)
Ta thấy: \(\sqrt{168}< \sqrt{169}=13\left(2\right)\)
Từ (1) và (2) => \(\sqrt{50}+\sqrt{26}+1>13>\sqrt{168}\Rightarrow\sqrt{50}+\sqrt{26}+1>\sqrt{168}\)
![](https://rs.olm.vn/images/avt/0.png?1311)
![](https://rs.olm.vn/images/avt/0.png?1311)
thế này nhé:
\(\sqrt{50}>\sqrt{49}=7\)
\(\sqrt{26}>\sqrt{25}=5\)
\(\Rightarrow\sqrt{50}+\sqrt{26}>5+7+1=13\)
MÀ : \(\sqrt{168}<\sqrt{169}=13\)
=>\(\sqrt{50}+\sqrt{26}+1>\sqrt{49}+\sqrt{25}+1=13>\sqrt{168}\)
VẬY : \(\sqrt{50}+\sqrt{26}+1>\sqrt{168}\)
k cho mh nha bạn
![](https://rs.olm.vn/images/avt/0.png?1311)
![](https://rs.olm.vn/images/avt/0.png?1311)
Ta có:
\(\sqrt{50}+\sqrt{26}+1>\sqrt{49}+\sqrt{25}+1\)
\(=7+5+1=13\)
Mà \(\sqrt{168}< \sqrt{169}=13\)
Vì \(\sqrt{50}+\sqrt{26}+1>13>\sqrt{168}\)
Nên \(\sqrt{50}+\sqrt{26}+1>\sqrt{168}\)
![](https://rs.olm.vn/images/avt/0.png?1311)
ta có căn 50 + căn 26 + 1 > căn 49 + căn 25 +1=7+5+1+13 suy ra căn 50 +căn 26 +1 > căn 169 > căn 168
![](https://rs.olm.vn/images/avt/0.png?1311)
Dễ mà:vvv
Ta có: \(\left\{{}\begin{matrix}\sqrt{37}>\sqrt{36}=6\\\sqrt{26}>\sqrt{25}=5\end{matrix}\right.\)
=> \(\sqrt{37}+\sqrt{26}+1>\sqrt{36}+\sqrt{25}+1=6+5+1=12\)
Mà \(\sqrt{144}=12\)
=> \(\sqrt{37}+\sqrt{26}+1>\sqrt{144}\)
Ta có: \(\sqrt{37}>\sqrt{36}=6\)
\(\sqrt{26}>\sqrt{25}=5\)
Do đó: \(\sqrt{37}+\sqrt{26}>6+5=11\)
\(\Leftrightarrow\sqrt{37}+\sqrt{26}+1>12\)
hay \(\sqrt{144}< \sqrt{37}+\sqrt{26}+1\)
![](https://rs.olm.vn/images/avt/0.png?1311)
Ta có: \(\sqrt{50}+\sqrt{26}+1\approx13,17\)
\(\sqrt{168}\approx12,96\)
Vì \(13,17>12,96\) nên \(\sqrt{50}+\sqrt{26}+1>\sqrt{168}\)
Ta thấy:
\(\sqrt{50}>\sqrt{49}=7\)
\(\sqrt{26}>\sqrt{25}=5\)
\(\Rightarrow\sqrt{50}+\sqrt{26}+1>7+5+1=13\)(1)
Mà \(\sqrt{168}< \sqrt{169}=13\left(2\right)\)
Từ (1),(2)\(\Rightarrow\sqrt{50}+\sqrt{26}+1>\sqrt{168}\)
\(\sqrt{50}>\sqrt{49}=7\)
\(\sqrt{26}>\sqrt{25}=5\)
\(\sqrt{1}=1\)
cộng vào \(VT>VP=13>\sqrt{169}>\sqrt{168}\)