2, \ \sqrt5-2>0, \\
| \sqrt5-2|= \sqrt5-2, \\ \\
\pi\approx3,14>3, \ 3-\pi<0, \\
|3-\pi|=-(3-\pi)=\pi-3, \\ \\
x^2\geq0, 1+x^2\geq0, \\
|1+x^2|=1+x^2, \\ \\
\sqrt{x}\geq0, x^8\geq0, -\sqrt{x}-x^8\leq0, \\
|-\sqrt{x}-x^8|=-(-\sqrt{x}-x^8)=\sqrt{x}+x^8." alt=" \sqrt5\approx2,24>2, \ \sqrt5-2>0, \\
| \sqrt5-2|= \sqrt5-2, \\ \\
\pi\approx3,14>3, \ 3-\pi<0, \\
|3-\pi|=-(3-\pi)=\pi-3, \\ \\
x^2\geq0, 1+x^2\geq0, \\
|1+x^2|=1+x^2, \\ \\
\sqrt{x}\geq0, x^8\geq0, -\sqrt{x}-x^8\leq0, \\
|-\sqrt{x}-x^8|=-(-\sqrt{x}-x^8)=\sqrt{x}+x^8." align="absmiddle" class="latex-formula">