MedVision ad

Search results

  1. B

    Locus problems relating to parabola.

    P(2ap, ap^2) Q(2aq, aq^2) Midpoint of PQ = (a(p+q) , a(p^2 + q^2)/2 ) Now condition is: 2ap - 2aq = 2a therefore: p - q = 1 From parametric coordinates of M x=a(p+q) (p+q) = x/a y = (a(p^2 + q^2)/2 2y/a = p^2 + q^2 therefore: x^2/a^2 = (p+q)^2 = p^2 + 2pq + q^2 BUT... (p-q)^2 = p^2 - 2pq +...
  2. B

    maths question help

    lol wtf, why was he asking this question then..?
  3. B

    maths question help

    Lol maybe that's his goal or something Anyway, kooltrainer do you get it, it's pretty simple really, you increase c by 3%, means u get 1.03*c But now you've changed the right side which means you need to do the same shiz you did on the right, to the left side. So you divide by (1.03)^0.5 And...
  4. B

    Anyone know what raw mark is needed for a 98 or 99 in 3U Maths?

    lol wtf??? 58--> 90??? This is for 3u???
  5. B

    Journeys Related Text

    which era do you live in again?
  6. B

    2 unit maths revision

    you don't get "that part"?? You mean the whole thing? Pretty simple, he just used a product rule to find the derivate, then let the derivative = 0...
  7. B

    What am I doing wrong? Integration of y=x^2 + 4 between y=13, y=4, help appreciated!

    Re: What am I doing wrong? Integration of y=x^2 + 4 between y=13, y=4, help appreciat 81pi/2? prolly made a mistake sumwhere did it in my head, anyways volumes is a 2u topic so i should be fine...
  8. B

    Anyone know what raw mark is needed for a 98 or 99 in 3U Maths?

    you know the higher mark you get the less scaling you get. Like if you get 70, you gt scaled to 94-95. But if you get 85 you get scaled to around 98.
  9. B

    What am I doing wrong? Integration of y=x^2 + 4 between y=13, y=4, help appreciated!

    Re: What am I doing wrong? Integration of y=x^2 + 4 between y=13, y=4, help appreciat shit lol graphmatica fucking failed me, sketched x=+(y-4)^0.5, it gives me the whole fucking parabola, when the graph should be on the 1st quadrant only =(, probably should not rely on graphing software for...
  10. B

    Quick question about the answer to 2005 maths paper

    can sum1 add a few words here as well?, so you find the derivate, sub t=20 in, to find -80, how does that fit in with the question?
  11. B

    Quick question about the answer to 2005 maths paper

    2005 2u mathematics paper, q6b A tank initially holds 3600 litres of water. The water drains from the bottom of the tank. The tank takes 60 minutes to empty. A mathematical model predicts that the volume, V litres, of water that will remain in the tank after t minutes is given by V = 3600*(1-...
  12. B

    Locus and the Parabola Questions

    you're not bored of fail 3, are you? bloody poser
  13. B

    Post Your PC Specs

    Re: Post your system specs lol no, black ops is no where near the most graphics intensive game. For the majority of the last 4 years has been Crysis. Sure there are some games that look better, but the level of strain that Crysis puts on a SINGLE graphics card, is ridiculous, even the high...
  14. B

    Post Your PC Specs

    Re: Post your system specs why would i get an i7-2600k when I have a 980x extreme?
  15. B

    Starcraft 2

    get a better pc nub
  16. B

    HSC Mathematics Marathon

    congratulations, you are correct, you're bound to get an E4 in 4 unit easily lolol how dumb do you have to be if you want to post that question anyway?
  17. B

    I think I'm making a mistake. (LOCUS)

    Strange... works for part(b) though, maybe it's a mistake? EDIT: yeah it's gotta be a mistake, because the parameters of a focal chord are t and -1/t, which doesn't apply to 2 and -1. Look at part(b), parameters are 2 and -0.5, which do satisfy the focal chord's parameters: t and -1/t
  18. B

    What am I doing wrong? Integration of y=x^2 + 4 between y=13, y=4, help appreciated!

    Re: What am I doing wrong? Integration of y=x^2 + 4 between y=13, y=4, help appreciat not up to volumes yet :P
  19. B

    What am I doing wrong? Integration of y=x^2 + 4 between y=13, y=4, help appreciated!

    Re: What am I doing wrong? Integration of y=x^2 + 4 between y=13, y=4, help appreciat i see... thankyou
Top