Câu hỏi
- A \(\begin{array}{l}
a)\,\,\forall m\\
b)\,\,m < 3
\end{array}\) - B \(\begin{array}{l}
a)\,\,m \ne - 1\\
b)\,\,m < 3
\end{array}\) - C \(\begin{array}{l}
a)\,\,m \ne 1\\
b)\,\,m > 3
\end{array}\) - D \(\begin{array}{l}
a)\,\,m \ne - 1\\
b)\,\,m > 3
\end{array}\)
Lời giải chi tiết: