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  1. rawrence

    is it necessary

    Yes, but you don't use it in mechanics question. It's important to leave it out from those solutions. Otherwise, integrands and other algebraic applications should have it. But I really don't think markers will deduct without them, unless of course it alters the actual solution which it rarely...
  2. rawrence

    Does Ruse write their own Trial papers?

    Because if you do well it's a much better confidence boost, also, easy exams won't help at all, if you challenge yourself you'll do better in the future. Also scaling! :P I just find I learn better if I do badly in a hard test rather than do well in an easy test
  3. rawrence

    What are we meant to compare in Frankenstein and Bladerunner??????

    Okay a good step is to firstly look at the syllabus, what is it asking? So basically, relate the two texts in terms of their context and find similarities (and differences) in how the context has shaped the meaning. A particularly important word in this module is VALUES. What you're trying to...
  4. rawrence

    Does Ruse write their own Trial papers?

    I think Ruse writes their own paper, and yes I prefer schools that write their own exams, generally they're more challenging
  5. rawrence

    4 unit next year?

    LOL, yes, it is very funny.
  6. rawrence

    chems syllabus point

    Okay evidence can be in the form of 2 methods, qualitative and quantitative evidence. Quantitative is concerned with evidence which is actually measured, so trapped gas bubbles in ice cores in Antarctica can show the changes in Nitrogen oxide concentrations since the Industrial revolution (which...
  7. rawrence

    Frankenstien/Bladerunner essay: A generic approach vs a unusual approach?

    I just did my assessment before the term ended, what I did was that I talked about technocracy and religious overtaking by man's misguided overreaching. They were relatively different themes to everyone else and it kind of felt that it was a nice change from everyone else's theme. I'll update on...
  8. rawrence

    HSC Mathematics Marathon

    New question, polynomials: \\\text{When the polynomial P(x) is divided by } (x^2+1) \text{ the remainder is } Ax+B\\\\\text{ i) Show that } A=\frac{P(i)-P(-i)}{2i} \text{ and }B=\frac{P(i)+P(-i)}{2}\\\\\text{ii) If P(x) is odd, find the remainder when P(x) is divided by }(x^2+1)
  9. rawrence

    Effort to get 80+ in 4U

    It's not very hard to get over 80...so long as you know what you're doing, it's one of those things that if you don't understand one concept, it could collapse the entire topic, I'm averaging 95% currently but really, all I do is study the crucial parts and do lots of past papers
  10. rawrence

    4 Unit Maths

    Term 3 Last year.
  11. rawrence

    Complex number questions

    I stand corrected
  12. rawrence

    Complex number questions

    Equilateral triangle, angles of 60 degrees. Use rotation by 60 degrees i.e. multiple by cis pi/3
  13. rawrence

    Need Help - De Moivre's Theorem

    I cut out steps so coding in latex wouldn't be so tedious, err this is a bit hard to explain because i cbf latexing. Can you just work backwards from where i factorised? I'm a bit busy
  14. rawrence

    Need Help - De Moivre's Theorem

    \\\text{ First step is to just work inside the bracket first and realise the denominator }\\\\\frac{(1+sin\frac{\pi}{7}+icos\frac{\pi}{7})(1+sin\frac{\pi}{7}+icos\frac{\pi}{7})}{(1+sin\frac{\pi}{7})^2-(icos\frac{\pi}{7})^2}\\\\\text{ Simplifying}\\\\\frac{1+2sin\frac{\pi}{7} +...
  15. rawrence

    Question that doesn't give you the radius of earth

    When you give an altitude of an object you don't add the radius of the Earth, altitude is the level above earth's surface. Therefore if a question gives you altitude you have to add on Earth's radius
  16. rawrence

    Error in Fitzpatrick and worked solutions?

    Oh, I don't know what I did wrong, got the answer now by redoing
  17. rawrence

    why am i finding this too easy

    Go do extension 2 in year 12
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