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  1. Arrowshaft

    Mathematics Extension 1 Exam Predictions/Thoughts

    what did you get for binomials
  2. Arrowshaft

    Mathematics Extension 1 Exam Predictions/Thoughts

    But the expression wasn’t a binomial coefficient, it also included powers of 2 and x
  3. Arrowshaft

    Mathematics Extension 1 Exam Predictions/Thoughts

    Lol what, it asked for alpha as a root between x1 and x2
  4. Arrowshaft

    Mathematics Extension 1 Exam Predictions/Thoughts

    Binomial coefficients are symmetrical...
  5. Arrowshaft

    Mathematics Extension 1 Exam Predictions/Thoughts

    How’d you explain last part of 14 (b)?
  6. Arrowshaft

    Mathematics Extension 1 Exam Predictions/Thoughts

    Oh, you said 5 before...
  7. Arrowshaft

    Mathematics Extension 1 Exam Predictions/Thoughts

    What do you reckon will be the cut off for a 98?
  8. Arrowshaft

    Mathematics Extension 1 Exam Predictions/Thoughts

    Wait what. I got 15 for binomials ... must’ve messed up something! Faaaaaa
  9. Arrowshaft

    Mathematics Extension 1 Exam Predictions/Thoughts

    What did you get for the inverse function q (10MC)
  10. Arrowshaft

    Mathematics Extension 1 Exam Predictions/Thoughts

    Why was the last part 3 marks though lol?
  11. Arrowshaft

    Mathematics Extension 1 Exam Predictions/Thoughts

    What do you mean traps? I thought the paper was fairly straightforward
  12. Arrowshaft

    The extension 1 maths exam paper I made

    Ayy nice. That makes two of us with exam papers. I too love making papers. 😃
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    Is this guy telling the truth?

    Grammar intellect shows. Argument well tackled mate. Also, I agree about your point about fear mongering; just another reason for students to unnecessarily procrastinate.
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    Disparity between assessment mark and HSC exam mark?

    Are you sure you’re expecting a b4 and this is not just pre exam jitters? If you managed to rank 5th I find that hard to believe.
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    New Syllabus Chemistry Textbook Suggestions

    Pearson is good for calculations but I feel it skimps on theory a bit, that’s why I combine Pearson with Nelson. I also use the ATAR Notes Practice Paper book to do questions from each topic to consolidate on since exam type questions are essential and unfortunately you’ll only have our paper we...
  16. Arrowshaft

    Mathematics Extension 1 Exam Predictions/Thoughts

    I have an uneasy feeling the last question this time might be a functions and inverse functions questions. It’s been a while since they did that (14 years, 2005 iirc).
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    Square root of complex numbers... I need... help...

    agreed. Just wanted to give him an idea of the other option :)
  18. Arrowshaft

    Square root of complex numbers... I need... help...

    I'm gonna teach you the 'normal' way of doing it, Drongoski showed you the shortcut, I'm building off of Psmao's method. So, we are given that z^2=2-\sqrt{5}i Now remember that the complex number z can be expressed as z=x+iy where x,y\in\mathbb{R}, (x+iy)^2=2-\sqrt5i...
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