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  1. OakMoon!

    NSTC-10|Gateway to International Science Olympiads! (Pakistanis Only)

    If you ever wished to participate and represent your country in an international competition, this is a golden opportunity for you. A nationwide test is held in each of the four disciplines-Physics, Chemistry, Biology and Mathematics- which is followed by training camps of selected candidates...
  2. OakMoon!

    Mathematics paper 3, modulus inequalities.

    How do you find the critical value? My concept is unclear. An example question: Q2 of http://www.xtremepapers.me/CIE/Internat ... 6_qp_3.pdf
  3. OakMoon!

    Physics Paper 2 ON05 (URGENT)

    http://www.xtremepapers.me/CIE/Internat ... 5_qp_2.pdf Q4a(ii) How do you estimate the exact area under the curve? You can't apply the simple triangle formula nor can you integrate, yet the marking scheme gives a pretty exact answer.
  4. OakMoon!

    Very helpful Further Maths notes

    The link was posted by another guy on this forum, I am posting it again for the help of other candidates. Here is another link for polar coordinates' notes that is not included in the notes above: http://docs.google.com/viewer?a=v&q=cac ... dvXed_wwiA
  5. OakMoon!

    Maths, Addmaths and Statistics: Post your doubts here!

    After the initiative taken by Math_angel in the IGCSE section, I have made this topic for students of O'levels. You can post any question or any problem here and me along with other XPF users will try to help you as soon as possible. This topic is a feasible option as it won't bring a hassle of...
  6. OakMoon!

    Only the best in maths can solve this. NEED HELP ASAP

    These are some questions . Attempt them and post your solution or part of the solution that you tried to do. I need it by today. PLEASE. Be quick. 1) Show that for any point in time (considering the problems in 3-D), there always exists a pair diametrically opposite points, say P1 and P2 on the...
  7. OakMoon!

    Logical questions.. Help needed in 6 hrs.. PLANETMASTER

    Look at the questions on the attached photo. I am done with the doughnut question, I would be glad if you help with rubiks cube and the PUZZLE 15.. Just tell me your answer and explain it a bit. PLEASE ASAP. I need to submit in the morning. PLEASEEEEEEEEEEE... Just give it a try...
  8. OakMoon!

    Very tough mathematics questions

    EXPLAIN THESE QUESTIONS... PLEASE 1. If n ∈ N, solve the equation cosn x − sinn x = 1, for x ∈ R. 2. Let a, b, c ∈ R, a2+b2 6= 0 and L = {(x, y) ∈ Q×Q | ax+by = c}. a) Can you find an example of (a, b, c) such that L = ∅ ? b) Can you find an example of (a, b, c) such that L has a unique...
  9. OakMoon!

    Mensa Test

    Any one has access to mensa's practice papers? Please post them here.
  10. OakMoon!

    Mensa Test

    Any one has access to mensas practice papers? Just post them here.
  11. OakMoon!

    Advice on Alevel Sciences' books

    People can you please advice me on which books to buy for all the three sciences: Physics, Chemistry and Biology. Just tell about the one or two books u consider the best. And advice on only those books that you have studied yourself. Thankyou for your concern in advance. :)
  12. OakMoon!

    some one plz solve this relative velocity Q...

    a)A flight is scheduled to fly due north from Singapore to Bangkok. Bangkok is 1400 km from Singapore. There is a wind blowing from the bearing 060o at a constant speed of 96 km/h. Given that the speed of the plane in still air is 800 km/h, find 1.the course that needs to be set by the pilot...
  13. OakMoon!

    Which Calculators are Allowed???

    plz any1 tell me which calculators are allowed in O levels maths and admaths papers.. i was fascinated when i found out that u can solve 25% of the admaths paper just by using a fx 570/991 ms.... and even better if u hav the es series.... i heard only 82 ms is allowed plz explain...
  14. OakMoon!

    Which Calculators are Allowed???

    plz any1 tell me which calculators are allowed in O levels maths and admaths papers.. i was fascinated when i found out that u can solve 25% of the admaths paper just by using a fx 570/991 ms.... and even better if u hav the es series.... i heard only 82 ms is allowed plz explain...
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