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

A \(S = \left\{ { - \left( {2\sqrt 2  + \sqrt 3 } \right);\,\,\sqrt 3  - 2\sqrt 2 ;\,\,2\sqrt 2  - \sqrt 3 ;\,\,2\sqrt 2  + \sqrt 3 } \right\}.\)

B \(S = \left\{ { - \left( {\sqrt 2  + \sqrt 3 } \right);\,\,\sqrt 3  - \sqrt 2 ;\,\,\sqrt 2  - \sqrt 3 ;\,\,\sqrt 2  + \sqrt 3 } \right\}.\)

C \(S = \left\{ {\sqrt 2  + \sqrt 3 ;\,\,\sqrt 3  - \sqrt 2 ;\,\,2\sqrt 2  - \sqrt 3 ;\,\,2\sqrt 2  + \sqrt 3 } \right\}.\)

D \(S = \left\{ {2\sqrt 2  + \sqrt 3 ;\,\,\sqrt 3  - 2\sqrt 2 ;\,\,\sqrt 2  - \sqrt 3 ;\,\,\sqrt 2  + \sqrt 3 } \right\}.\)

A \(\begin{array}{l}{\rm{a)}}\,\,P = a + \sqrt a  + 2\\{\rm{b)}}\,\,a = 1\end{array}\)

B \(\begin{array}{l}{\rm{a)}}\,\,P = a - \sqrt a  - 2\\{\rm{b)}}\,\,a = \frac{1}{2}\end{array}\)

C \(\begin{array}{l}{\rm{a)}}\,\,P =  - a - \sqrt a  - 2\\{\rm{b)}}\,\,a = \frac{1}{3}\end{array}\)

D \(\begin{array}{l}{\rm{a)}}\,\,P =  - a + \sqrt a  + 2\\{\rm{b)}}\,\,a = \frac{1}{4}\end{array}\)

A \(\left( {3;\, - 1} \right),\,\,\left( { - 3;1} \right).\)

B \(\left( {3;\,1} \right),\,\,\left( {3; - 1} \right).\)

C \(\left( { - 3;\,1} \right),\,\,\left( { - 3; - 1} \right).\)

D \(\left( {3;\,1} \right),\,\,\left( { - 3; - 1} \right).\)

A \(m =  - 2.\)

B \(m =  - 1.\)

C \(m = 1.\)

D \(m = 2.\)

A \(1)\,\,\left( { - 1; - 1} \right).\)

B \(1)\,\,\left( { - 1;1} \right).\)

C \(1)\,\,\left( {1; - 1} \right).\)

D \(1)\,\,\left( {1;1} \right).\)

A \(4900\)

B \(4901\)

C \(5000\)

D \(5001\)