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  1. L

    Conics - Hyperbola

    Using focus - directrix definition, show that PS/PS* = TS/TS* where S, S* are foci, and T is tangent at P intersecting x-axis
  2. L

    Missionaries of Hate - a documentary on Uganda's anti-gay movement

    Yes your single uncle is an accurate and valid sample, representing the complete of the black/homosexual community. The guy quoted proper stats from the CDC. Props to him.
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    Conics - Hyperbola

    When considering hyperbola via parametrics, how come the angle (a) for the RHB is limited to pi/2 - -pi/2 whilst on the LHB, (a) is limited to -pi/2 - -pi and pi-2 - pi
  4. L

    Careers Expo

    The weather was completely miserable. On the way back to school it was like driving on water. Ok exaggeration, but still very very poor drainage system.
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    Careers Expo

    Got a scarft from NRMA. Very nice one as well. I recon there were some stuff in the bags that were alchoholic, cause once the guy at the counter read the slip which had age 17 on it, took one thing out of the bag and threw it out.
  6. L

    Careers Expo

    So whos going on friday? I think we should post our schools, and a distinctive feature. Then we can play guess who on the day. School: James Cook Feature: Badges
  7. L

    oh hey man, wat u doing on here?

    oh hey man, wat u doing on here?
  8. L

    Integration by parts

    When integrating by parts, such as integral arccosx why cant we use let x=cos a
  9. L

    Careers Expo

    We should all meet up sometime.
  10. L

    Careers Expo

    Going on the friday. Went last yr and it was pretty good.
  11. L

    Environment Affecting Phenotype

    So how do we differentiate between the two? Say for example in photosynthesis, if we covered up one plant and it stopped growing. How do we know if the environment has triggered the gene for growth to be off or whether it has just prevented growth as there wasnt sufficent nutrients.
  12. L

    Environment Affecting Phenotype

    I am just interested to know when the syllabus specifies environment affecting phenotype, do they mean that the environment triggers a change in the genotype, i.e. signaling the switch on/off of a gene, OR do they mean the environment affecting the phenotype, without affecting the genotype.
  13. L

    integration

    Please explain :)
  14. L

    integration

    Was i right?
  15. L

    integration

    Did you try partial fractions? x = 1/11 (-3x+2) +3 with the denominator on the bottom
  16. L

    Binomial

    If a, b ,c, d are the coefficent of any four consecutive terms in the expansion of (1+x)^n, prove that: \frac{a}{a+b} + \frac{c}{c+d} = \frac {2b}{b+c}
  17. L

    Projectile Motion

    theta's not zero. But good try anywaz.
  18. L

    Volume Question - dN/dt = k(N-P)

    A vessel is being filled at a variable rate and the volume of liquid in the vessel at any time t is given by: V=A(1-e^-kt) b) If one quarter of the vessel is filled in 5 minutes, what fraction is filled in the next five minutes.
  19. L

    Half Yearly Reports

    O man, you guys are so gun. I can see like a few 99.5+ currently.
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