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  1. U

    2023 HSC chat

    dr du the goat
  2. U

    BOS papers before 2012?

    ye i think i just set it at that since that atar should be enough to get me into basically any course (except like usyd med)
  3. U

    BOS papers before 2012?

    Yep thanks for the info. I wanted to sit the bos trials last yr but was in queensland at that time so I'll definitely try to sit them this year
  4. U

    BOS papers before 2012?

    ye but bos papers are harder typically
  5. U

    BOS papers before 2012?

    yes but there's still a lot of relevant questions
  6. U

    BOS papers before 2012?

    Hi, were there any BOS papers made before 2012 for ext 1/2 maths and if so, where can I find them?
  7. U

    mod 6 phys question

    you can also do f = qvb for the sea of delocalised electrons in the copper wire lmao
  8. U

    mod 6 phys question

    is it C?
  9. U

    functions

    easiest way to do should be considering how f(x+1-1) + f(1-(x+1)) = f(x) + f(-x) = 2(x+1)^2+8
  10. U

    What are we allowed to do in 4u vs 3u?

    Ur allowed to use out of syllabus techniques in the hsc i think as long as you don't make any mistakes. However for internals, you'd have to do as your teacher says if you don't want to lose marks. That being said, imo implicit diff is simply an application of the chain rule so I don't agree...
  11. U

    Speculative ATAR estimate

    Honestly rn seems to be a bit early for an accurate atar estimate but if u wanna maximise atar, it'll probably be good to focus on improving physics and english
  12. U

    3D Vectors

    use the two forms of CB.CD
  13. U

    induction (with probability)

    uh this is a bit late since i just saw this, but my method is as follows for the inductive step. First off, we split the k+1 pieces of bread falling into k pieces falling and then the last piece falling Then we take two cases: 1- after the first k bread have fallen, the number of bread slices...
  14. U

    proof

    otherwise 1/4 would be a square number cos it's (1/2)^2
  15. U

    proof

    However, a square number by definition is a square of another integer, in this case u have no way of guaranteeing m/n is an integer.
  16. U

    2023 HSC chat

    conquerhsc
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