Mate, your a knob. If you have nothing constructive to say, then don't. This person has plenty of time to focus on these things. @ OP: Yes i believe they can ask yr 11 stuff, however i think it only consitutes 30%. In reality, if you are sweet with the HSC content; you should be okay with the 11 stuff, because most of it is an extension upon the previous year.
Your not alone; i didn't do general maths year 11, as i was in 2U.