\[\boxed{\text{331\ (331).}\text{\ }\text{Еуроки\ -\ ДЗ\ без\ мороки}}\]
\[1)\ \frac{4}{x} = 4 - x\]
\[y = \frac{4}{x}\]
\[x\] | \[1\] | \[2\] | \[4\] | \[- 1\] | \[- 2\] | \[- 4\] |
---|---|---|---|---|---|---|
\[y\] | \[4\] | \[2\] | \[1\] | \[- 4\] | \[- 2\] | \[- 1\] |
\[y = 4 - x\]
\[x\] | \[4\] | \[1\] | \[2\] |
---|---|---|---|
\[y\] | \[0\] | \[3\] | \[2\] |
\[Ответ:x = 2.\]
\[2)\ x - 2 = \frac{3}{x}\]
\[y = x - 2\]
\[x\] | \[0\] | \[3\] | \[4\] |
---|---|---|---|
\[y\] | \[- 2\] | \[1\] | \[2\] |
\[y = \frac{3}{x}\ \]
\[x\] | \[1\] | \[3\] | \[1,5\] | \[- 1\] | \[- 3\] | \[- 1,5\] |
---|---|---|---|---|---|---|
\[y\] | \[3\] | \[1\] | \[2\] | \[- 3\] | \[- 1\] | \[- 2\] |
\[Ответ:x = 3;\ x = - 1.\]
\[3)\ x + 2 = - \frac{5}{x}\]
\[y = x + 2\]
\[x\] | \[1\] | \[2\] | \[3\] |
---|---|---|---|
\[y\] | \[3\] | \[4\] | \[5\] |
\[y = - \frac{5}{x}\ \]
\[x\] | \[1\] | \[2\] | \[5\] | \[- 1\] | \[- 2\] | \[- 5\] |
---|---|---|---|---|---|---|
\[y\] | \[- 5\] | \[- 2,5\] | \[- 1\] | \[5\] | \[2,5\] | \[1\] |
\[Ответ:нет\ корней.\]