\(\displaystyle\sqrt{{{t}–{1}}}–{5}\le{1}\)

\(\displaystyle\sqrt{{{t}–{1}}}–{5}+{5}\le{1}+{5}\)

\(\displaystyle\sqrt{{{t}–{1}}}\le{6}\)

\(\displaystyle\sqrt{{{t}–{1}}}^{{2}}\le{6}^{{2}}\)

\(\displaystyle{t}–{1}\le{36}\)

\(\displaystyle{t}\le{37}\)

\(\displaystyle\sqrt{{{t}–{1}}}–{5}+{5}\le{1}+{5}\)

\(\displaystyle\sqrt{{{t}–{1}}}\le{6}\)

\(\displaystyle\sqrt{{{t}–{1}}}^{{2}}\le{6}^{{2}}\)

\(\displaystyle{t}–{1}\le{36}\)

\(\displaystyle{t}\le{37}\)