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  1. insert-username

    Mistake in 2005 HSC?

    Your arguments are reasonable for answer A - accuracy. Once again though, the more correct argument is for reliability, since the Board of Studies' definition for reliability relates directly to reproducibility (i.e. "to the degree to which repeated measurements give the same result), which is...
  2. insert-username

    Any one want to medicine at uni?

    I doubt there's allotments by school. These things are done through UAC and UMAT. Besides, you won't know what your UAI will be till you do the exams and get the results back. Estimatd UAIs should be taken with a nice large grain of salt. You shouldn't buy too much into that rumour. I_F
  3. insert-username

    Mistake in 2005 HSC?

    No, if you get more of them and they're very similar or the same, then the degree is increased. If you get wildly different results, then the degree of similarity decreases. In this case, if you do the procedure more times, and you get the same results each time, reliability is increased (from...
  4. insert-username

    Should I drop Maths Ext 2?

    If all 4 of your English units are among your best 10, they will all be counted. If just EE1 and EE2 are in the top 10, they will be counted as 1 unit each. And if just Advanced is in the top 10, it will be counted for 2 units. If you have 11 units, your worst result won't be counted (if it's...
  5. insert-username

    A few months 2 go, what should I be studying

    Revise on stuff you did a while ago. Learn stuff you're covering now. Ask questions about the stuff you're finding tricky. And don't spend every waking hour on schoolwork because, in the vast majority of case, it doesn't help as much as organised studying with relaxation time. I_F
  6. insert-username

    Australian Students Prize

    Congratulations! Judging from your marks, you definitely deserved it. :) I_F
  7. insert-username

    Any one want to medicine at uni?

    Hence the "good precursors". :p All the information you need on UMAT is available here, the UMAT homepage. Registrations will open after the Easter break and the test itself will be on Wednesday July 26. You can email the UMAT office to be sent an information booklet with more details. I_F
  8. insert-username

    Should I drop Maths Ext 2?

    You have 4 units of English and 4 units of Maths. That's very hard to maintain together, and I would advise that you think very carefully about keeping both. They each require a considerable time investment, and if you find you can't make that investment, I would drop one of them. However, think...
  9. insert-username

    Any one want to medicine at uni?

    Sciences are good precursors for Medicine, but neither Newcastle nor UNSW require any of the sciences as prerequisites for the undergrad Medicine course. I was thinking about doing Medicine, but I don't think I will now. It takes too long and it's too much work... I'm not that crazy about it...
  10. insert-username

    Question

    Positive charges generate an electric field that can be represented by arrows leaving the charge. Positive charges placed in this electric field experience a force in the direction of the arrows, and hence when two positive charges are placed near each other, each experiences a force away from...
  11. insert-username

    Processors- help

    Clockspeed isn't everything. Processor speed also has a lot to do with the efficiency of the internal architecture of the processor, and in this regard AMD is streets ahead of Intel (for now). The Fx-57 outperforms the 670 almost across the board, and I'd go with the AMD chip in this case. I_F
  12. insert-username

    Favourite subjects

    Um, I don't like English. I'm pretty happy with everything else (maths, sciences, economics). :p I_F
  13. insert-username

    Hijack this log

    I don't see anything to worry about. :) I_F
  14. insert-username

    desperate need of help- quotient

    Don't post the same question twice in the same forum - it's spam and probably won't answer your question any faster. I've posted my answer in your other thread. I_F
  15. insert-username

    trouble with the quotient rule

    Firstly, notation. u' = derivative of u, and v' = derivative of v. The derivative of the quotient u/v is: (vu' - uv')/v2 So: [(5x+1).3(2x-9)2.2 - (2x-9)3.5]/(5x+1)2 = [6(5x+1)(2x-9)2 - 5(2x-9)3]/(5x+1)2 = (2x-9)2[6(5x+1) - 5(2x-9)]/(5x+1)2 (taking (2x-9)2 out as a common factor) =...
  16. insert-username

    urgent: log questions

    2x^2 + x + 1 = 14 (index law) x2 + x + 1 = log214 x2 + x + 1 - log214 = 0 x2 + x + log22 - log214 = 0 x2 + x + log21/7 = 0 Use quadratic formula from there to solve for x. Remember your log laws: when you subtract logs of the same base, you divide, and when you add logs of the same base...
  17. insert-username

    failing math ext2

    Like you can talk. :p housemouse, 2nd in Ext. 2 in a class of your size is excellent, and you seem a very capable student. Keep up the work and the rank and you'll be set - just have to get over the exam then. :) I_F
  18. insert-username

    simple differentiation question

    You use the chain rule. dy/dx = du/dx. dy/du Let u = x2 So du/dx = 2x And dy/du = 1/(1+u2) So dy/dx = 2x . 1/(1+x4) (since u = x2) = 2x/(1+x4) I_F
  19. insert-username

    Curly question

    The derivative may be 0 at the point (0,0), but the function is still increasing, since the definition of an increasing function is that f(b) > f(a) for all b>a. In this instance, the f(0) is larger than the f(-0.00000000000001, etc.), and the f(0.0000000,1 etc) is greater than the f(0), so it's...
  20. insert-username

    IE Help

    The only thing I can think of is that you've had the FirefoxView extension at some point and it's now corrupted in some way. A fresh install of IE *should* fix it. That's really odd, to say the least. I_F
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