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

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

B \(\begin{array}{l}a)\,\,A = \frac{4}{{x + 1}}\\b)\,\,\left( {x;y} \right) = \left( {2;3} \right)\end{array}\)

C \(\begin{array}{l}a)\,\,A = \frac{4}{{{x^2} + x + 11}}\\b)\,\,\left( {x;y} \right) = \left( {0;1} \right)\end{array}\)

D \(\begin{array}{l}a)\,\,A = \frac{2}{{x + 1}}\\b)\,\,\left( {x;y} \right) = \left( {1;2} \right)\end{array}\)

A \(b)\,\,1872\)

B \(b)\,\,1278\)

C \(b)\,\,1782\)

D \(b)\,\,1287\)

A \(x = 0\)

B \(x = 1\)

C \(x = \frac{1}{2}\)

D \(x =  - 1\)

A \(\left( {x;\,y} \right) \in \left\{ {\left( {2;\,0} \right),\,\,\left( {0;1} \right)} \right\}.\)

B \(\left( {x;\,y} \right) \in \left\{ {\left( { - 2;\,0} \right),\,\,\left( {0; - 1} \right)} \right\}.\)

C \(\left( {x;\,y} \right) \in \left\{ {\left( { - 2;\,0} \right),\,\,\left( {0;1} \right)} \right\}.\)

D \(\left( {x;\,y} \right) \in \left\{ {\left( {2;\,0} \right),\,\,\left( {0; - 1} \right)} \right\}.\)

A \(20\)

B \(22\)

C \(25\)

D \(30\)

A \(a = 5,\,\,b = 9,\,\,c = 2,\,\,d = 3,\,\,e = 4,\,\,f = 7,\,\,g = 1,\,\,h = 6,\,\,k = 8\) (hoặc ngược lại)

B \(a = 9,\,\,b = 5,\,\,c = 2,\,\,d = 4,\,\,e = 3,\,\,f = 7,\,\,g = 6,\,\,h = 1,\,\,k = 8\) (hoặc ngược lại)

C \(a = 2,\,\,b = 3,\,\,c = 5,\,\,d = 9,\,\,e = 7,\,\,f = 6,\,\,g = 4,\,\,h = 8,\,\,k = 1\) (hoặc ngược lại)

D \(a = 3,\,\,b = 8,\,\,c = 2,\,\,d = 5,\,\,e = 2,\,\,f = 9,\,\,g = 1,\,\,h = 7,\,\,k = 6\) (hoặc ngược lại)