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  1. H

    So what are you guys playing at the moment?

    Deaths: 136 Mom kills: 0 Gonna quit today haha (my best was basement five)
  2. H

    The Helping Me in Geometry Thread

    U know that this is a parallelogram because opposite sides are parallel and opposite sides are equal in length Area of parallelogram = base x perpendicular height...
  3. H

    So what are you guys playing at the moment?

    Binding of Issac is too addictive
  4. H

    HSC 2012-14 MX2 Integration Marathon (archive)

    Re: MX2 Integration Marathon nahh its just the length, good effort man! in the end its all about answering the question
  5. H

    HSC 2012-14 MX2 Integration Marathon (archive)

    Re: MX2 Integration Marathon $let u^2 = 1-x^2, du = -xdx \\ \\ \therefore I = $\int_0^1 (1-u^2)u^2du = \left ( \frac{1}{3}- \frac{1}{5} \right ) = \frac{2}{15}
  6. H

    Trig

    lol!
  7. H

    Functions

    LOL! To show u x\rightarrow b
  8. H

    Solubility or such

    Mg(NO_{3})_{2(aq)} \rightarrow Mg^{2+}_{(aq)}+ 2NO3^-_{(aq)}
  9. H

    Solubility or such

    .
  10. H

    Functions

    .
  11. H

    Locus Q.

    Therefore lactus rectum = 4a
  12. H

    Chemistry Concentration Moles question

    Avogadro's constant
  13. H

    Chemistry Concentration Moles question

    beaten by pappa
  14. H

    Help with SHM Questionn!

    yeh v(max) is which acceleeration is zero or u can find the vertex
  15. H

    Locus Question 0.0

    There is a reason why they wrote the equation of PQ to be like that instead of y = \frac{1}{2}(p+q)x - apq
  16. H

    What is everyone's fitness/gym routine during HSC ?

    i dont believe u, last time i saw u, u didnt look like a 192
  17. H

    Parametrics and the parabola marathon.

    there was some confusion with the gradient thing lol m(norm. P) = -1/t .: m(norm. Q) = t .: m(tang. Q) = -1/t dy/dx = x/2a For the point of contact of tangents with gradient -1/t -1/t = x/2a x = -2a/t y = 2a/t^2 Q[-2a/t, 2a/t^2] (in my previous try, i subbed in dy/dx as gradient of...
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