6. The first few lines, find the law, following his party come what?
1
1 1
2 1
1 2 1 1
1 1 1 2 2 1
Analysis: looked down from the first row, the second row is found in the first row or interpretation explanation, a 1; 1 2 is the third line; fourth row 2, 1 1 1 ;
This indicates that the behavior of the demand: 312,211