\[\boxed{\mathbf{718\ (718)}\mathbf{.}\mathbf{\ }Еуроки\ - \ ДЗ\ без\ мороки}\]
\[\textbf{а)}\]
\[a\] | \[7\] | \[- 4\] | \[0\] | \[1\] | \[5\] | \[- 8\] | \[0\] | \[3\] |
---|---|---|---|---|---|---|---|---|
\[- a\] | \[- 7\] | \[4\] | \[0\] | \[- 1\] | \[- 5\] | \[8\] | \[0\] | \[- 3\] |
\[2)\ldots отрицательное;\]
\[пример:\ \ a = 5;\ - a = - 5.\]
\[\ldots положительное;\]
\[пример:\ \ a = - 3;\ - a = 3.\]