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  1. C

    Equation for dividing a point AB internally/externaly

    its well documented that sleep proportional to 1/3unit success
  2. C

    Equation for dividing a point AB internally/externaly

    You could always tutor people, then u'd be seeing more of HSC maths
  3. C

    Equation for dividing a point AB internally/externaly

    yeah it helps me relax >:]
  4. C

    Equation for dividing a point AB internally/externaly

    what do you mean, i was on here all morning
  5. C

    Equation for dividing a point AB internally/externaly

    dont listen to mojo guys ill be on here 5am, if u need help just post ill help :)
  7. C

    Equation for dividing a point AB internally/externaly

    dudes just use the formula, nothing to it :)
  8. C

    1995 HSC Q5b iii.

    you don't win in the first 25 draws, and it doesn't matter whether you win on the next draws or not. whats the big deal? when i read thru the MANSW thing it made sense. but u rkn the BOS talked about limiting sum? mansw didnt say that =p
  9. C

    ::1994 Motion Q::

    ok so i cud just say: after it moves from x=2 it moves towards the origin and crosses it where it begins to slow down at stops at 2(1-sqrt3) where it then begins to move to the right again. This motion is oscillatory, but it is not SHM as it is not of the form -n^2(x-b) " interestingly...
  10. C

    ::1994 Motion Q::

    yeah it just occured to me then
  11. C

    ::1994 Motion Q::

    Ok fair enough, how did u get that x=-1.5? Also, i was looking at eg. in the excel book and they reckon good way to find restirction on x is to remember that v^2 >= 0 With that in mind, i get x^3 -6x^2 + 16 >= 0 Dont think thats so easily solvable?
  13. C

    ::1994 Motion Q::

    Can anyone help out here ^^
  14. C

    ::1994 Motion Q::

    actually upon graphing, there does seem to be an oscillatory nature hmmm even tho we cant show it thru the algebra?
  15. C

    ::1994 Motion Q::

    it doesnt start at x=2, nor from rest. refer back to question. and its not SHM either
  16. C

    ::1994 Motion Q::

    maybe i shud be a bit more clear,...ok its easy to see its turned to the left but what i want to know is how do we know if its turning again or whatever its doing, and the graph of its velocity is a bit weird, albeit i had to use graphmatica
  17. C

    ::1994 Motion Q::

    x'' = 3x(x-4) when t=0, x=0 and v=4sqrt(2) can be shown v^2 = 2(x^3-6x^2+16) Velocity is 0 at x=2 and x'' < 0 iv) Briefly describe the motion of the particle after it moves from x=2. How do people do this without resorting to graphing? :)
  19. C

    Asymptotes

    Tenille you just didnt choose to let that 1/x go to inf for fun? Sirius black is right
  20. C

    Geometry Question

    that wasn't 98
  21. C

    Exp Growth and Decay Q

    Since we're talking about motion, i was wondering what's the best way to determine things like "will the particle ever turn back" or something. usually if its easy to do u cud just find x in terms of t and test as t-->inf, but what about other situations. for eg, there was a question few years...
  22. C

    The 2004 HSC - Mathematics Extension 2 Paper

    easiest test in last 10yrs
  23. C

    [B]How to improve your 3-unit mark[/B]

    dont come to this forum. go study.
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