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  1. C

    Application of Calculus Q. - Derivative

    Really? It's 3 unit question Find dv/dh × dr/dv and substitute
  2. C

    Half yearly report - ATAR Estimate Please

    Yeah I agree about 92 maybe higher but definitely 90+
  3. C

    My HSC, please help

    very good i hope we both make it v1 thanks so much
  4. C

    How to show these kind of equations?

    the question is wrong
  5. C

    sure kurosaki

    sure kurosaki
  6. C

    My HSC, please help

    I didnt know where to post this on BOS forum i am currently doing chem, bio, phys and planning to get into UNSW med unbonded (so competitive) I finished Chemistry - Yr 12 work by myself so i am keeping chemistry, when i am in yr 12 i will be left with only 6 unit to complete, since i...
  7. C

    Series help

    i will come back with the last question tmr, too tired right now
  8. C

    Series help

    c) you have GP a, ar, ar^2, ar^3, .... the first, third and fourth are a, ar^2, ar^3 for them to be AP ar^2 - a = ar^3- ar^2 r^3 - 2r^2 +1 = 0 using the hint (r-1)(r^2-r-1) = 0 hence r = 1 or (1+or - (5)^1/2)/2 using quadratic equation
  9. C

    Series help

    b) really similar to the first one you use the GP mean method again and using simple algebra you get r= 0 or 2a hence the sequence is 1. a, a, a, a, .... which is the constant sequence or 2. a, a+r, a+4r a, 3a, 9a which is odd positive integer ---3--- multiples of the first term
  10. C

    Series help

    i will do one question at a time, my cp legs a lot 1.a) 1st 2nd and 4 th arithemetic sequence therefore they are a, a+r , a+3r if these 3 terms are in GP they should have a geometrical mean hence a+r/a = (a+3r)/(a+r) since you are doin 3 unit you should be able to do some algebra here an...
  11. C

    Series help

    cookiez man i feel so sorry for you, these questions are so bothering no one will answer to this but dw i will haha i have a lot of time to waste at night
  12. C

    Hard Shiz

    haha definitly i think it needs to be moved to 2 u
  13. C

    Induction

    so true +1 i will just say one quick thing look at hsc past papers and there is at q 8 where they ask you to show LHS = RHS it seems like you have to use anything other than Induction, but even my maths teacher said the question is impossible to be solved withoud induction my advice is if the q...
  14. C

    codislife not true bro, it's my aim, but i hardly think i can get there there are so many other...

    codislife not true bro, it's my aim, but i hardly think i can get there there are so many other smart people than me
  15. C

    Can I still get a good Atar?

    but people can't say yes or no without you submitting your school rank, your rankings in each subjects. the mark does not matter, its your ranks
  16. C

    UNSW Colleges

    OK i have no idea what UNSW is like Here's the word of wisdon People in Sydney, would kill you to get in UNSW med that's how competitive it is, and highly good in terms of every thing Any campus in UNSW is awesome Getting in UNSW med even awesomer Conglat that you got in btw
  17. C

    Help, maths!

    RHS = ax^2 + (b-8a)x + (16a - 4b +c) if you learned simultaneous equations and equating coeffcients technique no prob. assuming you do not know if ax^2 + bx + c = px^2 + qs + r p=a q=b r=c hence using this and simultaneous equations a= 5 b= 3 c=0
  18. C

    Help, maths!

    i will help you dw just a minute that's all it takes
  19. C

    Probability Q

    yes you are right could you show your working out how you got up to there
  20. C

    parabola

    WHAT THE HECK MAN DO you even speak english. Joking, i seriously urge you to arrange the question in an understandable form
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