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  1. Sy123

    How do you do this General Maths question?

    If that's how it is then so be it :P Also my calculation is incorrect, apologies: I=Prt I=1990 \times 0.05479\% \times 23 = 25.08 which is what you got so yeah sorry for confusion
  2. Sy123

    How do you do this General Maths question?

    So we count that there is 22 days worth of interest payed off. We know that the rate is 20% per annum, so to find the rate per day \frac{20\%}{365} = 0.05479.. \% per day I=Prt I= \$ 1990 \times 0.05479 \% \times 22 = $2398.90 So she payed -> 2398.90 - 1990 = $408.90 of interest.
  3. Sy123

    Year 12 2013 Chit Chat Thread

    Re: The p00n thread Sure bro, if they grow up to be junkies who live on the streets, they need tax money to survive. Should I spend my hard earned money on someone who stuffed their own life up? If you really want everything to be ' let everyone do what they want', then abolish all welfare and...
  4. Sy123

    Year 12 2013 Chit Chat Thread

    Re: The p00n thread Well I am 99.9% sure of my prediction. Though there is a greater possibility of a girl state ranking 3U than 4U because in 3U you would need a perfect score, so no silly mistakes And I sincerely doubt that many drug-takers end up getting great atars, maybe a little bit...
  5. Sy123

    Year 12 2013 Chit Chat Thread

    Re: The p00n thread True, true.
  6. Sy123

    Year 12 2013 Chit Chat Thread

    Re: The p00n thread Mostly, look at Business/Legal/Biology all of which rote-heavy yet have average scaling Thus we can illustrate the inferiority and lower-intelligence of rote learners. (not saying all people who do those subjects are dumb, but yeah its the cohort that determines scaling)
  7. Sy123

    Year 12 2013 Chit Chat Thread

    Re: The p00n thread Dedication is not gender specific. Its just that the male youth of these days are such fucking hard kunts that they can't act like men and study properly Instead they act like little boys and become retarded. I have no doubt that a guy will come first in 4U and 3U...
  8. Sy123

    How to Study ? Help needed

    Whatever you do, do not get 2U Fitzpatrick, it is absolute garbage Just stick with whatever your school assigns you and do past papers for exam practise since 2U never gets too weird
  9. Sy123

    People don't know HOW to learn.

    You can still learn a lot in the HSC there is no doubt about that. Just because rote learners are able to cheat the system doesn't mean you have to, if you take the time to learn properly then it is valuable and you have an advantage over a rote learner most of the time.
  10. Sy123

    People don't know HOW to learn.

    This response is to everyone who is repeating the same thing over and over again, and that is its difficult to learn in such an environment. Ok, it might be harder for some people due to their environment, its not like I go to a top selective school, some people in my classes don't care about...
  11. Sy123

    How do you do this General Maths question?

    Ok, so in 2012 they put 60 tagged into the wild full of an unknown amount of seals, they capture 120 again and find that 30 of them have been tagged. Since \frac{30}{120} \times 100 \% were tagged 25\% of the whole population in 2012 were tagged. There are 60 seals tagged. So that 60 seals...
  12. Sy123

    HSC 2013-14 MX1 Marathon (archive)

    Re: HSC 2013 3U Marathon Thread (2+x)^n = \binom{n}{0}+\binom{n}{1}(1+x) + \binom{n}{2} (1+x)^2 + \dots + \binom{n}{n}(1+x)^n Equate co-efficient of x^k \binom{n}{k} 2^{n-k} = \binom{n}{n} \binom{n}{k} + \binom{n}{n-1} \binom{n-1}{k} + \dots + \binom{n}{k} \binom{k}{k}...
  13. Sy123

    HSC 2013 MX2 Marathon (archive)

    Re: HSC 2013 4U Marathon Alternatively, a^2+b^2 \geq 2ab $We need to sub into a and b, all the combinations of 2 numbers from the set$ \ \ x_1, \ x_2, \ x_2 \ \dots, \ x_n x_1^2+x_1^2 \geq 2x_1 x_2 x_1^2+x_3^2 \geq 2x_1x_3 . . . x_1^2+x_n^2 \geq 2x_1x_n x_2^2+x_3^2 \geq 2x_2 x_3...
  14. Sy123

    HSC 2013-14 MX1 Marathon (archive)

    Re: HSC 2013 3U Marathon Thread $Prove using the binomial theorem$ \binom{n^2}{n} > n^n
  15. Sy123

    HSC 2013 MX2 Marathon (archive)

    Re: HSC 2013 4U Marathon P(x)=(x-a)^2 Q(x) + R(x) P'(x)=2(x-a)Q(x) + (x-a)^2Q'(x)+R'(x) In order for P'(a) = 0 R'(a) = 0 However R(x) does not contain any factors of (x-a)^2 since its the remainder, therefore the only consequence is that if R(x) = Ax+b or R(x) = C In order for R'(a) = 0...
  16. Sy123

    HSC 2013 MX2 Marathon (archive)

    Re: HSC 2013 4U Marathon They are getting more and more non-rigorous so I decided to not make as many questions
  17. Sy123

    HSC 2013 MX2 Marathon (archive)

    Re: HSC 2013 4U Marathon Correct. ================== This is an easier one but interesting. Also I will post a solution to Kipling's question by 12:00 if no-one has posted theirs by then. $Express in modulus-argument form$ \ \ \ 1+\cos \theta + i\sin \theta
  18. Sy123

    HSC 2013 MX2 Marathon (archive)

    Re: HSC 2013 4U Marathon Not quite, what did you get as the ellipse that satisfies C?
  19. Sy123

    Economics HSC marathon

    How can stagflation occur? (3 Marks)
  20. Sy123

    Year 12 2013 Chit Chat Thread

    Haha good, because I'm not doing very good in Advanced but pretty good in 3U and 4U.
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