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    Need help with a math question please (Algebra and surds)

    Aren't they the same question?
  2. H

    Need help with a math question please (Algebra and surds)

    Why can't you do it? Can you identify the problem that's preventing you from making progress?
  3. H

    Silly mistakes >:(

    I'm strongly confident the problem lies with one's degree of concentration at each particular step (or maybe the general abilities to focus.) The error I was making was thinking too far ahead, thereby losing focus on the current step, thus doing something like 3 x 3 = 6. So I fixed it by...
  4. H

    UNSW Sem 1 Final Exams Thread

    yeh, I think he's the best!!! I love how he does a quick summary at the start of each tutorial
  5. H

    The Night Before Exams

    This is great! Keep it up!
  6. H

    How to remember the anion and cation tests? And solubility table?

    Repetition of flow chart (as the above said) until you can daw the flow chart without aid. Your aim is to increase recall speed and draw the flow chart faster with your head than your hand - if that makes any sense? lol Good luck! Remember to constantly test yourself to strengthen those memories!
  7. H

    prac exam

    ok
  8. H

    Best music to study too?

    Music with no words
  9. H

    HSC 2012-2015 Chemistry Marathon (archive)

    re: HSC Chemistry Marathon Archive It's been a while... Suppose that you have a closed system that is under equilibrium (all gases) and the equation is: X(g) + 4Y(g) <-> 8Z(g). If I pump in Argon gas at constant pressure, what does it do to the system? Is equilibrium disturbed or undisturbed...
  10. H

    intergration problem

    IIRC, that's a 3U method
  11. H

    Umat prep help!!

    Last activity on 11th of March, 2015... Mickay, if you see this, check your PM.
  12. H

    Gimme some maths questions before my exam tmr :)

    Here are some: 1) Given that 5 cos \theta = \sqrt{2} sin \theta . Find sin^2 \theta and (cos \theta)^{\frac{1}{3}} in exact form. ( \theta is acute) 2) Show that 5^{log2} + 2^{log5} - 50^{log2} = 0 EDITTTT: log means log of base 10
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    HSC 2015 MX2 Integration Marathon (archive)

    Re: MX2 2015 Integration Marathon Let u^2 = 1+e^x and a little side-note that 1+e^x > 0 so |u| > 0 So, 2udu = e^x dx I = 2 \int \frac{u^2}{u^2 - 1} du I = 2 \int ( 1+ \frac{1}{u^2 - 1})du I = 2 \int ( 1 - \frac{0.5}{u+1} + \frac{0.5}{u-1} )du I = 2 \sqrt{1+e^x} -...
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    HSC 2015 MX2 Marathon (archive)

    Re: HSC 2015 4U Marathon yeh got that too after using cosine supplementary angles
  15. H

    HSC 2015 MX2 Marathon (archive)

    Re: HSC 2015 4U Marathon z^8 + 1 = \left(z^2 - 2zcos\left ( \frac{\pi}{8} \right ) + 1 \right) \left(z^2 - 2zcos\left ( \frac{3\pi}{8} \right ) + 1 \right) \left(z^2 - 2zcos\left ( \frac{5\pi}{8} \right ) + 1 \right) \left(z^2 - 2zcos\left ( \frac{7\pi}{8} \right ) + 1 \right) Hello...
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    HSC 2015 MX2 Marathon ADVANCED (archive)

    Re: HSC 2015 4U Marathon - Advanced Level (not mine)
  17. H

    LoL thread

    Co-op if you don't know what all skills do and don't have a good idea of the build, otherwise, pvp
  18. H

    Interstellar Thread

    BEAUTIFUL MOVIE! My mind did not rest one bit - also learnt some physics too xD (through quick discussions with a friend who knows physics)
  19. H

    LoL thread

    Nice! I should do that next time, haha LOOOL!
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