Search results

  1. A

    Need help with general parabolas

    You need to complete the square to get it into the more traditional form: x2- 6x- 12y+ 33=0 x2- 6x + 9 - 12y+ 24 = 0 (x - 3)2 - 12y + 24 = 0 (x - 3)2 = 12y - 24 (x - 3)2 = 12(y - 2) There you can now read straight off that. Vertex is (3,2), focal length is 3 (12/4) and hence focus is...
  2. A

    Proof without words

    Whilst browsing the usyd mathematics database I encountered this interesting serious. Various well known facts are proven using diagrams and graphs. There were literally hundreds, here are a few of them: http://photobucket.com/albums/a105/proofwithoutwords/ Note: some of the pages contain...
  3. A

    The 2005 CSSA`

    Please read this: http://community.boredofstudies.org/showpost.php?p=1795863&postcount=46
  4. A

    Topics for the trials???

    Syllabus: http://www.boardofstudies.nsw.edu.au/syllabus_hsc/pdf_doc/maths23u_syl.pdf
  5. A

    Coming 1st in NSW

    I think you'll find in the last 2 years there have been band 6's in Standard. (4 in total from memory)
  7. A

    something new on the "pi and e" debate...

    I agree. Tomorrow or Friday I will try and go to the usyd School of Mathematics library and see if I can find any references on this approximation. My lecturer recommended a reference:
  8. A

    Can i get a copy of the 2005 CSSA 2U Maths Trial?

    Read this please: http://community.boredofstudies.org/showpost.php?p=1795863&postcount=46
  9. A

    projectiles

    Always start with acceleration unless otherwise specified
  10. A

    Help on how to write ethics essay?

    I cant comment specifically on your topic because I did a different one, but I guess this might help on some sort of structure. Its my essay from last years CSSA Trial.
  11. A

    Oops.

    pi^x + pi^(x+1) = pi^x + pi^x.pi = pi^x(1 + pi) ?
  13. A

    Is Usyd really like this?

    :( Fine ill take my maths degree elsewhere!
  14. A

    Science (advanced)

    haha everyone gets it wrong :(
  15. A

    pi and e.

    Buchanan posted that already :p
  16. A

    pi and e.

    ^Wouldnt that bring no_arg to the same arguement as before? Its still using a calculator of some sort?
  17. A

    Update me on VSU

    Get off your high horse. Please.
  19. A

    Science (advanced)

    GPA of 5.5 is 3 Distinctions and 2 Credits for one semester. Not extremely difficult, at least in first year.
  20. A

    2005 Mathematics CSSA Trial

    The admins have been notified on the issue. There is nothing else that has to be said in here.
  21. A

    geometric series and loan repayments

    Bn= 1000(1.06)^n - 72[1.06^n-1/0.06] They divided 72 by 0.06 = 1200
  22. A

    pi and e.

    Essentially you have to prove that , correct? Or rather that the above is false.
  23. A

    2005 Q8

    Where did that come from?
Top