\[Стр.\ 10.\]
\[25.\ Противоположные\ числа\]
\[\boxed{\mathbf{1.}}\]
\[\textbf{а)}\ противоположными;\]
\[\textbf{б)}\ одно;\]
\[\textbf{в)}\ числа,\ противоположные\ \]
\[натуральным,\ ноль\ и\ \]
\[натуральные\ числа.\]
\[\boxed{\mathbf{2.}}\]
\[3\] | \[- 2\] | \[5\] | \[\frac{1}{2}\] | \[- 7\] | \[0,1\] | \[- \frac{3}{4}\] | \[2,5\] | \[a\] | \[- 1,2\] | \[- 20\] | \[20\] | \[- b\] |
---|---|---|---|---|---|---|---|---|---|---|---|---|
\[- 3\] | \[2\] | \[- 5\] | \[- \frac{1}{2}\] | \[7\] | \[- 0,1\] | \[\frac{3}{4}\] | \[- 2,5\] | \[- a\] | \[1,2\] | \[20\] | \[- 20\] | \[b\] |
\[\boxed{\mathbf{3.}}\]
\[3\] | \[- 2\] | \[5\] | \[\frac{1}{2}\] | \[- 7\] | \[0,1\] | \[- \frac{3}{4}\] | \[2,5\] | \[- 1,2\] | \[- 20\] | \[20\] | \[a\] | \[- b\] | \[a - 3\] |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
\[\frac{1}{3}\] | \[- \frac{1}{2}\] | \[\frac{1}{5}\] | \[2\] | \[- \frac{1}{7}\] | \[10\] | \[- \frac{4}{3}\] | \[\frac{2}{5}\] | \[- \frac{5}{6}\] | \[- \frac{1}{20}\] | \[\frac{1}{20}\] | \[\frac{1}{a}\] | \[- \frac{1}{b}\] | \[\frac{1}{a - 3}\] |
\[\boxed{\mathbf{4.}}\]