Đề thi học kì 1 - Toán 6 Trường Chuyên Amsterdam -...

A 2015

B 2016

C 2017

D 2018

A 11

B 12

C 13

D 14

A 3

B - 3

C 4

D - 4

A \(\left( {a;b} \right) = \left\{ {\left( {30;\,\,50} \right);\,\,\left( {60;\,\,20} \right)} \right\}.\)

B \(\left( {a;b} \right) = \left\{ {\left( {20;\,\,60} \right);\,\,\left( {60;\,\,20} \right)} \right\}.\)

C \(\left( {a;b} \right) = \left\{ {\left( {30;\,\,60} \right);\,\,\left( {60;\,\,30} \right)} \right\}.\)

D \(\left( {a;b} \right) = \left\{ {\left( {40;\,\,50} \right);\,\,\left( {60;\,\,20} \right)} \right\}.\)

A \(\left( {x;\,y;\,z} \right) = \left( {2;\,\,1;\,\,4} \right).\)

B \(\left( {x;\,y;\,z} \right) = \left( {3;\,\,2;\,\,4} \right).\)

C \(\left( {x;\,y;\,z} \right) = \left( {1;\,\,1;\,\,5} \right).\)

D \(\left( {x;\,y;\,z} \right) = \left( {2;\,\,2;\,\,2} \right).\)