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  1. pokka

    Integration Question

    Area bounded by the curve and axes is a quadrant of the circle with radius 2. So Area=(pi*2^2)/4=pi squared units.
  2. pokka

    imo 2013

    oh cool, ivan was one of the maths tutors I had this semester in uni
  3. pokka

    Series - Limiting Sums

    oh woops my bad, thanks for pointing that out asianese.
  4. pokka

    Series - Limiting Sums

    $The series starts at $a=10$ and $r=\dfrac{5}{6}$. So our limiting sum is given by:$\\\\S_{\infty}=\dfrac{10}{1-\dfrac{5}{6}}=60\\\\$But remember that the ball was dropped at 12m in the beginning.$\\\\\therefore $Total distance$=60+12=72$m$
  5. pokka

    Some Series and Sequence questions

    1.\quad\\\begin{align*}t_n&=S_n-S_{n-1}\\\\&=3n^2-11n-[3(n-1)^2-11(n-1)]\\\\&=3n^2-3(n-1)^2-11n+11(n-1)\\\\&=3(n^2-(n-1)^2)-11(n-n+1)\\\\&=3(n^2-n^2+2n-1)-11\\\\&=3(2n-1)-11\\\\&=6n-14\end{align*}\\\\\\$To check if it is arithmetic you check if $t_n-t_{n-1}=t_{n+1}-t_n$ such that both sides give...
  6. pokka

    Help with Trig questions

    This is a rough diagram I've drawn to help you for Q1. Your aim is to find alpha (labelled on diagram), which is your angle of descent, using trig.
  7. pokka

    Should I even bother with 2 unit maths?

    ^this and besides it's never too late to drop the subject, I've known of people who have dropped the subject a week or a few days before the HSC exam, they SHOULD allow you to do it.
  8. pokka

    Should I even bother with 2 unit maths?

    If you're not going to bother with maths then wouldn't it be better for you to drop it since you know it won't count? It'll save you from doing an extra assessment and more work and let you focus on your other subjects. Well, like mentioned above, I guess you'll just have to see how you go.
  9. pokka

    Usyd sem2 timetables are out

    I can't even view my timetable because of "difficult clashes" :( so I used the timetabling unit and it turns out doing MATH2988 gives me at least two clashes but the stupid thing is that my Thursdays only has a tute and a lecture and my whole afternoon is free there. That's what u get for...
  10. pokka

    BS School Uniform Policies

    there was one time in my HS when we had this teacher which was so pedantic about uniforms that she convinced the principal to enforce a demerit point system (not kidding) on uniforms. So for example if your tie was not done up properly to the top of the collar or your socks were below the ankle...
  11. pokka

    Semester 1 USYD Chatter Thread 2013

    I think it was around 2pm...
  12. pokka

    Semester 1 USYD Chatter Thread 2013

    hey was that you who I saw at Level 3 near the bio labs today? I just wasn't sure...
  13. pokka

    Semester 1 USYD Chatter Thread 2013

    This for biostats? I think I might get him in 3rd yr stats. Now I have Uri and I guess he's alright except it's hard to understand him at times (maybe that's the fact the content is a little difficult) and can get a little boring but he's definitely better than my MATH1905 lecturer. My MATH1905...
  14. pokka

    Semester 1 USYD Chatter Thread 2013

    This thurs after the meat
  15. pokka

    Semester 1 USYD Chatter Thread 2013

    yeh true dat haha gl with that :) was gonna mention that I'm currently suffering in stats now then Trebla posted that (kinda expected it coming from you tho and yeh yeh I know >_>) but apparently it gets better next sem and will be not as hardcore as it is now from what other people have said...
  16. pokka

    Semester 1 USYD Chatter Thread 2013

    applied maths and financial math or stats
  17. pokka

    Semester 1 USYD Chatter Thread 2013

    ah interesting I hardly started because of stats but I'm hoping to get more done in next 3 days :) For me, it was either I was gonna choose 2988 or 2968 and I chose 2988 because it sounds interesting but if I get sick of computers (my other units have comp labs as well D: ) then there might be...
  18. pokka

    Semester 1 USYD Chatter Thread 2013

    oh why the sudden change? :o and oh cool you're doing cosc. Also how is MATH2961 assignment going along? hey i'm doing that as well :P
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