1: \(6=\sqrt{36}< \sqrt{41}\)
2: \(\sqrt{19}>\sqrt{16}=4\)
3: \(\sqrt{21}< \sqrt{25}=5\)
4: \(7=\sqrt{49}< \sqrt{51}\)
5: \(-\sqrt{123}< -\sqrt{121}=-11\)
6: \(-12=-\sqrt{144}< -\sqrt{141}\)
\(6< \sqrt{41};\sqrt{19}>4;\sqrt{21}< 5\)
\(7< \sqrt{51};-\sqrt{123}< -11;-12< -\sqrt{141}\)

