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  1. xIshtar

    C3 may2012 preparation.

    If you look at pi - the angle, it is in the second quadrant, where tan is negative. By this logic, tan is negative in the 4th quadrant 2, as the association accute angle is the same. Atleast, thats how I saw it :P
  2. xIshtar

    C3 may2012 preparation.

    I've been studying myself :P Could you give me a year?
  3. xIshtar

    C3 may2012 preparation.

    Okay, so f(x) = 1 + (2/x+1) The +1 is a vertical translation, and you already know the shape of the curve 1/x, in that regard, (x+1) is a horizontal translation of -1. And the factor 2, is a stretch. As for the range, 2/(x+1) will never be zero, so think about where the curve tends to as x...
  4. xIshtar

    Math C3

    Hoping for just the regular stuff, which usually repeats every year :P
  5. xIshtar

    C3 may2012 preparation.

    Quotient is when there is a fraction, where there is factors of x at the top and bottom. If there is no x at the top, you can just use chain rule :P
  6. xIshtar

    C3 may2012 preparation.

    How's everyone feeling about the exam?
  7. xIshtar

    How many of you think Physics Unit 2 Was a SHit !?!?!

    Paper was pretty rough :P
  8. xIshtar

    How is Physics Unit2 goin?

    For me, yeah :)
  9. xIshtar

    How is Physics Unit2 goin?

    It's going okay, I guess. Pretty scared too, some scary questions have come up in papers :P
  10. xIshtar

    PHYSICS PAPER 2 HELP and NOTES

    It's stickied in the forums :)
  11. xIshtar

    IGCSE ENGLISH PAPER1

    Good luck to your guys. My advice would be just to to practise with past papers :)
  12. xIshtar

    PHYSICS PAPER 2 HELP and NOTES

    Uhh. I can tell you the way I did it, but it is a bit backwards. As we know the reading on V1 is 4V, and the resistance is 10 Mega Ohms, or 1 x 10^7 Ohms. Using V=IR you can find the current, which is 4 x 10^-7 A. Then, using V=IR again, the second voltage being 2V, the resistance of the...
  13. xIshtar

    how was the chemistry unit 2 paper?

    Yeah I guess it did, but I couldn't think of anything else :)
  14. xIshtar

    how was the chemistry unit 2 paper?

    I wrote that as it was added, it provided drive for the equilibrium and thus it was used to create more ozone so that dynamic equilibrium could be reached again
  15. xIshtar

    how was the chemistry unit 2 paper?

    I wrote it would be possible to tell when there are leakages :P
  16. xIshtar

    How is your preperation for Chem Unit 2 ???

    It was okay. I messed up a 3mark question due to nerves.. Went in completely the wrong direction. Rest of the paper was okay though. Sections A and C were nice :)
  17. xIshtar

    How is your preperation for Chem Unit 2 ???

    You will have to describe trends based on intermolecular forces I think. Hmm.. just know products, and that steamy fumes are produced, which turn white with ammonia, as the ammonium salt is formed.
  18. xIshtar

    How is your preperation for Chem Unit 2 ???

    No problem, good luck!
  19. xIshtar

    How is your preperation for Chem Unit 2 ???

    Basically, London Forces are the intermolecular forces that are the most common. They result from the uneven distribution of electrons, which forms a temporary dipole. This temporary dipole, then causes inducing or fleeting dipoles in the neighbouring molecules.
  20. xIshtar

    How is your preperation for Chem Unit 2 ???

    Yes, the greater number of electrons, the more polarisable it is, and thus it is more likely to form temporary dipoles.
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