`y = (mx)/(\sqrt{x - m + 2} - 1)`
`ĐK:`
\(\left\{ \begin{array}{l}x - m + 2 ≥ 0\\x - m + 2 \ne 1\end{array} \right.\)
`<=>` \(\left\{ \begin{array}{l}x ≥ m - 2\\x \ne m - 1\end{array} \right.\)
Để hàm số xác định trên `(0; 1)`
`<=>` \(\left\{ \begin{array}{l}0 < m - 2 < 1\\m - 1 < 0\\m - 1 > 1\end{array} \right.\)
`<=>` \(\left\{ \begin{array}{l}2 < m < 3\\m < 1\\m > 2\end{array} \right.\)
`=> m in (-∞; 1) cup (2; 3)`