Upper and lower bounds
| Paper | Question Topic | Written Solution | Video Solution |
|---|---|---|---|
| 2009-05-18 EdExcel 1380-3H | Q11 Upper and lower bounds | Yes | No |
| 2009-11-10 EdExcel 1380-4H | Q28 Upper and lower bounds | Yes | No |
| 2013-03-04 EdExcel 1MA0-2H | Q24 Upper and lower bounds | No | Yes |
| 2013-06-14 EdExcel 1MA0-2H | Q23 Upper and lower bounds | No | Yes |