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  1. S

    HSC 2012 MX1 Marathon #2 (archive)

    Re: HSC 2012 Marathon :) ^Invalid equation
  2. S

    Further Growth and Decay

    Substitution* ?
  3. S

    Further Growth and Decay

    Very nice question but it's actually got me stumped.
  4. S

    Trig Question - HSC Exam Style 3U

    Why do they give you 0 < x < π/4 as a condition if it is not needed in the solution?
  5. S

    Real Rap!

  6. S

    General Help for Inequalities

    Check your second line
  7. S

    "Student challenges ruling on her HSC"

    Re: Not happy with 99.95 ATAR! lol'd at BoS mention
  8. S

    Projectile Motion

    Which questions require you to spit it out? I highly doubt that...
  9. S

    rep

    Would rep.
  10. S

    Best song ever is:

    Tupac is way overrated
  11. S

    Half yrly reports = big wake up call.

    I literally lol'd when I realised you were in prelim....smh
  12. S

    Mathss helpp!!

    Did you draw triangles?
  13. S

    The Shittest Movie Ever.

    Disaster movie.
  14. S

    Remembering Circle Prrofs

    ^This. After doing a certain amount of questions, it will just come to you.
  15. S

    Why!

    Uhhh... Did you write an essay or did you just write an introduction for the exam? How the fuck did you get 3/20 O.o
  16. S

    inverse function Q

    Your question is extremely unclear, but I'll have a go f(N) = N + \frac{1}{N} \\ $ Let $y=f^{-1}(N)\\ N = y + \frac{1}{y} \\ yN = y^2 + 1 \\ y^2 - yN +1 = 0 \\ \\ $Using quadratic formula,$ \\ y = \frac{N \pm \sqrt{N^2 - 4}}{2} \\ \\ \therefore f^{-1}(N) = \frac{N \pm \sqrt{N^2 - 4}}{2}
  17. S

    Do teachers take into consideration rankings when marking subjective assesment tasks?

    Re: Do teachers take into consideration rankings when marking subjective assesment ta This is the same with our english department
  18. S

    T formula question help

    \pi = 180^{\circ} That's pretty much all there is to learn for radians
  19. S

    T formula question help

    You can also use the auxiliary angle method unless the question specifies t formula
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