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  1. icycledough

    4u exam

    Ah okay, that makes more sense. I've never heard of that concept before, as with our school, they based 4U entrance on Year 11 ranks for Extension 1, where it was the top 120 students who were allowed to do 4U (with some leeway to maybe 125 if people didn't want to do 4U).
  2. icycledough

    Chemistry HSC Excel book

    I don't really think Excel produces the greatest textbooks in terms of Year 12 HSC content, especially for a content-dense subject like Chemistry. I may be wrong and other people may say otherwise, but I would recommend companies like In Focus, Surfing, Pearson as I believe these have a greater...
  3. icycledough

    Improving speed and accuracy in maths

    This may just be due to exam stress and pressure, which is completely normal. Everyone will go through this, even the smartest students in your cohort. What you could do is trying to complete your practice exams 5-10 minutes early, so that you can stick to a more strict time and try to emulate...
  4. icycledough

    4u exam

    How would it work if students were dropped after having done 1 4U exam? So for example, if a student's subjects were 4U Maths, Physics, Chemistry and Advanced English, if they were to be dropped from 4U into 3U hypothetically, wouldn't that leave them with 9 units, thus, making them ineligible...
  5. icycledough

    Looking to go maths tutoring - Talent 100, Dr Du or Mr Ye?

    I could also argue that 'achieving' students may also want individualized care. If they were to go to a tutoring centre where the other students may not be providing them 'enough competition', then they may decide to pursue private, more individualized care. Private tutoring can definitely be...
  6. icycledough

    help required in these q's

    Honestly for question 18, it's just brute manipulation and a lot of steps until you get the required answer. But if it helps, I would sub in z and then multiply the numerator and denominator by the conjugate of the denominator, so you can cancel out the 'i' terms and just be left with the real...
  7. icycledough

    any tips or advice

    Yh, it depends on what type of teacher you get. My teacher last year was great as she was always able to provide me comprehensive feedback on any drafts I sent her, within a few days as well. Unfortunately, I've also had much worse teachers who won't even open my email or won't reply with anything.
  8. icycledough

    any tips or advice

    Honestly, I could give the same advice I used for Advanced, which is just to practice heaps and most importantly, GET WRITTEN FEEDBACK. Even if you can complete 1 or 2 practice essays a week and ramp it up before exams, this will have give you plenty of practice writing essays to different...
  9. icycledough

    Which uni is better for actuarial studies, and why?

    To be honest, I don't have anything else to add which hasn't already been said. The main advantage of each would be more double degree options at UNSW (6 to be precise; Commerce, Economics, Science, Advanced Mathematics, Computer Science and Information Systems). However, Macquarie seems to have...
  10. icycledough

    99.95

    Haha, you say only as if 3-7 people getting a .95 isn't that much.
  11. icycledough

    mindblank need help asap: how to solve this eq

    Unless there's a given restriction for n (or maybe they are just asking for the lowest value n can take), there can be infinite solutions. But essentially, with sin(x) = 0, x = n*pi (where pi = 180), so you want (7*n)/12 to be a positive integer. Thus, the lowest value n can be is 12, as the...
  12. icycledough

    Who’s finished their exams

    Congratulations to everyone who's completed all their exams ... saying that though, I'm not too sure what this new Omicron variation is going to mean regarding interstate or even international travel. With 90%+ of people being double vaccinated, it hopefully shouldn't be too much of an issue.
  13. icycledough

    99.95

    Keep in mind that only around 40-50 students get a 99.95, so it definitely is an elite club of the most talented and hard-working students. Unless you go to a school like Ruse or Sydney Grammar or any other top 5ish selective school, your cohort will be lucky to even have 1 99.95. I'd be more...
  14. icycledough

    Regret Not Choosing Extension 2 Maths

    Maybe not, as they will have gone through almost a whole term of 4U content, of which the first topic is complex numbers (although your school may use a different order). But as you haven't had an assessment task, hopefully, your teachers will be lenient and allow you to pick it up. Although in...
  15. icycledough

    Difficulty of Chem and Phys Modules

    Seeing that you have only had 1 term of Year 12 chemistry (basing off your profile of 2022 graduation), I'm assuming you would have almost finished Module 5 or started Module 6 (if your school is doing it in order). I'd say those modules are quite manageable. It will definitely be a big step up...
  16. icycledough

    Complex calculator

    Agree ... it's also very helpful to check your work. With Cartesian questions, they may not be that difficult, but there is a potential for silly mistakes to be made, so it can prevent those. Especially in a subject like 4U, you want to eliminate silly mistakes as much as possible, as even...
  17. icycledough

    Difficulty of Chem and Phys Modules

    I don't really remember the Year 11 modules (perhaps the Year 12s graduating next year can provide additional input on those), but I'd say out of the Year 12 modules, 7 and 8 were the hardest for me, as they had a lot of theory and difficult concepts to learn.
  18. icycledough

    Complex numb help

    I'm not sure if you would be required to justify it mathematically it, or if you could explain it in writing. But essentially, x^4 will always be positive, Ax^2 will always be positive (as A is strictly positive) and B must be positive. Thus, adding 3 positive numbers cannot result in a root for...
  19. icycledough

    Complex calculator

    I think the 100 allows you to use Cartesian form (x + iy), but not sure about the 82. Honestly, it was mainly easier for M/C questions, where they would ask for like roots of x + iy questions or something similar.
  20. icycledough

    Geography Predictions/Thoughts

    Good luck to all Geography students!
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