Does anyone know where these qs are from (1 Viewer)

[rapport1]

 

[Cliiton]

No clue mate. Cheers.

 

[MoonMonster196884]

Heilongjiang. jk i dont know

 

[jimmysmith560]

Questions 9 and 10 can be found in non-HSC/non-Australian online sources (although I cannot confirm an original source), which would make me doubt that they were written specifically for Mathematics Extension 2.

Question 11 can be found in AS and A-level mathematics sources. These are secondary school qualifications in the United Kingdom that are equivalent to the HSC. I found a version of this question with some minor differences in stimulus and question structure:




I hope this helps!