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My first preference is Commerce Engineering at USyd. I did Extension 1 but in hindsight would have loved to have done Extension 2, and it would probably have suited my degree better than other subjects I did. Which content should I cover in preparation for next year? I was thinking about...

I found the multis very hard. Not because they were legitimately hard but because they were niche recall fact questions with two dubious answers. Seemed more University style bullshit testing to me. Might as well start including none of the above and all of the above in the options now. The rest...

Has anyone used lead pencil for the multiple choice? I have done so in all my exams and apparently you aren't supposed to... Will it still be picked up?

How did everyone find the exam? Personally did the ATB module and found it to be very very straightforward.

Predictions for our paper? I'm thinking it will be hard since last year was so easy but maybe not since they are trying to encourage people into STEM...

Is it ever acceptable to use guess and check? Say for a problem like c iii from the 2004 HSC: http://prntscr.com/kx0cli Rather than using the definition of nCr can we just set up the inequality and substitute values in?

I thought it would be nice to have a thread for answering past HSC questions and any other for that matter, in the lead up to the exam in a few weeks. So here it is. I'll start off with one from the 2001 HSC which I have been struggling with. Any help would be appreciated...

http://prntscr.com/ktf346 Could I get some help with part b please. The answer I got for a was 288.

http://prntscr.com/ksa768 Could I get some help with part ii.Thanks

http://prntscr.com/kkcoio Could I get some help with part i, ii, iii, and iv. Thanks

http://prntscr.com/khe3aj Thanks. It looks easy but... maybe I am missing something.

http://prntscr.com/kh9aut How would you do part iv? Thanks

1. How would I find the domain of 1/1-sin^(2)x? 2. An inequality which has the same solution as |x+2| + |x-3|=5? Thanks in advance.

http://prntscr.com/kcrsrn Thanks

http://prntscr.com/kc3cpc I get that you apply the chain rule twice, and use arc length of circle on the winch, but can't get seem to get the second component of that rule. Also how would you do part iv. In this- http://prntscr.com/kc3pn0 Thanks in advance

http://prntscr.com/kabai3 Thanks

http://prntscr.com/k9ehx7 Part iii. And any tips for these inequality style projectile questions? I'm not great at them. Thanks

http://prntscr.com/k8nyt2 For part v I can find the first set of restrictions i.e. $ 15 \leq \theta \leq 45 . But then the other solution to the quadratic is 71.33... how to I find the upper limit? Thanks

A particle is moving in SHM in a straight line. It’s max speed is 2m/s and it’s max acceleration is 6m/s^2. Find the amplitude and the period of the motion. Also in $ $v^2=n^2(a^2-(x-c)^2)$ $ is $ c always the centre of motion? Thanks

A particle moves in SHM with acceleration given by x^(..)=-6x ms^2. When x=2, v=+-4. a. Find the period b. The amplitude c. Find the maximum velocity and acceleration Thanks in advance