Đề thi chính thức vào 10 môn Toán Trường Phổ Thông...

A \(\begin{array}{l}
a)\,\,S = \left\{ {4;\frac{1}{2};0} \right\}\\
b)\,\,\left( {1;2} \right);\,\,\left( {2;1} \right)
\end{array}\)

B \(\begin{array}{l}
a)\,\,S = \left\{ {4;\frac{1}{2};0} \right\}\\
b)\,\,\left( {1;2} \right)
\end{array}\)

C \(\begin{array}{l}
a)\,\,S = \left\{ {4;0} \right\}\\
b)\,\,\left( {1;2} \right);\,\,\left( {2;1} \right)
\end{array}\)

D \(\begin{array}{l}
a)\,\,S = \left\{ {4;\frac{1}{2}} \right\}\\
b)\,\,\left( {1;2} \right)
\end{array}\)

A \(\begin{array}{l}
a)\,\,\left\{ \begin{array}{l}
m > - \frac{1}{2}\\
m \ne 0
\end{array} \right.\\
b)\,\,m = 4
\end{array}\)

B \(\begin{array}{l}
a)\,\,m > - \frac{1}{2}\\
b)\,\,m = 4
\end{array}\)

C \(a)\,\,\left\{ \begin{array}{l}
m > - \frac{1}{2}\\
m \ne 0
\end{array} \right.\)

b) Không có giá trị của m thỏa mãn.

D \(\begin{array}{l}
a)\,\,\left\{ \begin{array}{l}
m > - \frac{1}{2}\\
m \ne 0
\end{array} \right.\\
b)\,\,m = \pm 4
\end{array}\)

A Vô nghiệm

B \(a)\,\,\left( {0; - 2} \right)\)

C \(a)\,\,\left( {1;0} \right)\)

D \(a)\,\,\left( {1;0} \right);\,\,\left( {0; - 2} \right)\)