`(\sqrt{22})^2=22`
`(\sqrt{27})^2=27`
Vì `22<27` nên `\sqrt{22}<\sqrt{27}`
`11^2=121`
`(\sqrt{121})^2=121`
Vì `121=121` nên `11=\sqrt{121}`
`7^2=49`
`(\sqrt{50})^2=50`
Vì `49<50` nên `7<\sqrt{50}`
`6^2=36`
`(\sqrt{33})^2=33`
Vì `36>33` nên `6>\sqrt{33}`