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

A \(A = 4 - \sqrt 5 \)

B \(A =  - 4 - \sqrt 5 \)

C \(A = 4 + \sqrt 5 \)

D \(A =  - 4 + \sqrt 5 \)

A \(\left( {x;\,y} \right) = \left\{ {\left( {2;\,0} \right),\,\,\left( {3;\,1} \right)} \right\}\)

B \(\left( {x;\,y} \right) = \left\{ {\left( {3;\,0} \right),\,\,\left( {2;\,1} \right)} \right\}\)

C \(\left( {x;\,y} \right) = \left\{ {\left( {3;\,2} \right),\,\,\left( {0;\,1} \right)} \right\}\)

D \(\left( {x;\,y} \right) = \left\{ {\left( {0;\,2} \right),\,\,\left( {1;\,3} \right)} \right\}\)

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

B \(\left( {x;\,y} \right) = \left( {5;\,2} \right).\)

C \(\left( {x;\,y} \right) = \left( {3;\,2} \right).\)

D \(\left( {x;\,y} \right) = \left( {3;\,1} \right).\)

A \(x = \sqrt 5 \)

B \(x = 2\)

C \(x = \frac{5}{2}\)

D \(x = \frac{3}{2}\)

A \({35^0}\)

B \({45^0}\)

C \({55^0}\)

D \({65^0}\)