\[\boxed{\mathbf{636\ (636).\ }Еуроки\ - \ ДЗ\ без\ мороки}\]
\[1)\ x^{2} - nx + 3 = 0;\ \ \ x = 6\]
\[36 - 6n + 3 = 0\]
\[6n = 39\]
\[n = \frac{39}{6} = 6,5\]
\[Ответ:при\ n = 6,5.\]
\[2)\ nx^{2} - 8x + 10 = 0;\ \ \ x = 0,5\]
\[0,25n - 4 + 10 = 0\]
\[0,25n = - 6\]
\[n = - 24\]
\[Ответ:при\ n = - 24.\]
\[\boxed{\mathbf{6}\mathbf{36}\mathbf{\text{.\ }}Еуроки\ - \ ДЗ\ без\ мороки}\]
\[f = \left\{ \begin{matrix} x^{2},\ \ x \leq 1 \\ \sqrt{x},\ \ x > 1 \\ \end{matrix} \right.\ \]
\[1)f( - 2) = 4;\ \ \ \ \ \]
\[f(0) = 0;\ \ \ \ \ \]
\[f(1) = 1;\ \ \ \ \ \]
\[f(4) = 2\]
\[2)\ f = x²\]
\[x\] | \[0\] | \[1\] | \[- 1\] | \[2\] | \[- 2\] |
---|---|---|---|---|---|
\[f\] | \[0\] | \[1\] | \[1\] | \[4\] | \[4\] |
\[f = \sqrt{x}\]
\[x\] | \[1\] | \[4\] | \[9\] | \[0\] |
---|---|---|---|---|
\[f\] | \[1\] | \[2\] | \[3\] | \[0\] |