• Congratulations to the Class of 2024 on your results!
    Let us know how you went here
    Got a question about your uni preferences? Ask us here

Search results

  1. A

    HSC 2016 Maths Marathon (archive)

    Re: HSC 2016 2U Marathon Yep Im pretty sure 3x+y-5=0 is the normal. Ty and also would that mean c=7
  2. A

    HSC 2016 Maths Marathon (archive)

    Re: HSC 2016 2U Marathon Differentiate y=x^2 + bx + c and hence find values of b and c if the line 3x+y-5=0 is a normal to the curve at the point X(3,-1).
  3. A

    Cambridge HSC MX1 Textbook Marathon/Q&A

    Re: Year 12 Mathematics 3 Unit Cambridge Question & Answer Thread having trouble with this binomial question
  4. A

    English Essay Marking

    Hey guys, so I'm just wondering if there is anyone i can PM to mark my english essay/give me feedback. Thank you!!!
  5. A

    Cambridge Prelim MX1 Textbook Marathon/Q&A

    Re: Year 11 Mathematics 3 Unit Cambridge Question & Answer Thread Okay tyvm I understand now. I was originally looking in the year 11 3u Cambridge book for permutations and combinations but couldn't find it.
  7. A

    Cambridge Prelim MX1 Textbook Marathon/Q&A

    Re: Year 11 Mathematics 3 Unit Cambridge Question & Answer Thread Ah so u were working it out for 40000 and not 4000?
  8. A

    Cambridge Prelim MX1 Textbook Marathon/Q&A

    Re: Year 11 Mathematics 3 Unit Cambridge Question & Answer Thread I don't understand how the answer wouldn't be 60 for b) since there are 5 numbers that can form 5 digits, which are greater than 4000. And the question doesn't say how many digits the number over 4000 can be. However, I...
  9. A

    Cambridge Prelim MX1 Textbook Marathon/Q&A

    Re: Year 11 Mathematics 3 Unit Cambridge Question & Answer Thread So im not quite sure how to do questions b,c & d, and just out of curiosity how would you find how many 4 digit numbers are even.
  10. A

    Big Bang question

    Hey guys, I would really appreciate it if someone could help me with this question. Describe how the Milky Way could have formed, including accretion and cooling of the universe in your answer.
  11. A

    Mathematical induction

    How would u do question 2, 3 and 4 I couldn't do step 3 on them
  13. A

    Mathematical induction

    We'll start off with some of these
  14. A

    Mathematical induction

    Okay guys, so I'm making this new thread for anyone who wants to practice induction.
  15. A

    Cambridge Prelim MX1 Textbook Marathon/Q&A

    Re: Year 11 Mathematics 3 Unit Cambridge Question & Answer Thread Hey guys, need help with these questions on polynomials and induction
  16. A

    Prelim Physics Thread

    okay thanks heaps, and just wondering if the gravitational force is the same as the centripetal force
  17. A

    Prelim Physics Thread

    Yeah sorry I meant 6.0x10^24 and the question says at a distance of 145km.
  19. A

    Prelim Physics Thread

    Hi guys, I'm unsure about how to do this circular motion question: Calculate the gravitational force acting on earth if earth orbits the sun at 145 million km and has a mass of 6x10^23kg.
  20. A

    Cambridge Prelim MX1 Textbook Marathon/Q&A

    Re: Year 11 Mathematics 3 Unit Cambridge Question & Answer Thread No, the question just asked to solve. Also, calculators like wolfram alpha only got 27 as well
  21. A

    Cambridge Prelim MX1 Textbook Marathon/Q&A

    Re: Year 11 Mathematics 3 Unit Cambridge Question & Answer Thread answers say n=27 even though i did those steps
  22. A

    Cambridge Prelim MX1 Textbook Marathon/Q&A

    Re: Year 11 Mathematics 3 Unit Cambridge Question & Answer Thread can someone please explain how n only = 27 and not ±27 in the equation n^(2/3) = 9
  23. A

    Cambridge Prelim MX1 Textbook Marathon/Q&A

    Re: Year 11 Mathematics 3 Unit Cambridge Question & Answer Thread Use mathematical induction to prove that for all positive integers n: a) a)
Top