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  1. Charlotte20102013

    Mathematics: Post your doubts here!

    Can someone help me with this question? http://papers.xtremepapers.com/CIE/Cambridge%20International%20A%20and%20AS%20Level/Mathematics%20(9709)/9709_s10_qp_12.pdf Q11 (V) The function g : x → 4 − 3 sin x is defined for the domain 1/2π ≤ x ≤ A. (iv) State the largest value of A for which g has...
  2. Charlotte20102013

    Chemistry: Post your doubts here!

    Thank you very much! And I can see that you've prepared videos on the past MCQ questions for us A level students too. Thanks for that also, I'm sure it will help a whole lot of students ! :LOL:
  3. Charlotte20102013

    Chemistry: Post your doubts here!

    Hi guys. Can you help me on a few past year questions? (ON 2013 P13) http://papers.xtremepapers.com/CIE/Cambridge%20International%20A%20and%20AS%20Level/Chemistry%20(9701)/9701_w13_qp_13.pdf 3. A 10cm3 sample of 0.30moldm–3 Tl+NO3– required 20cm3 of 0.10moldm–3 acidified NH4VO3 to oxidise it to...
  4. Charlotte20102013

    Statistics S1 post your doubts here

    Can someone exaplain to me how to get the answer to question 6(ii) ? http://papers.xtremepapers.com/CIE/Cambridge%20International%20A%20and%20AS%20Level/Mathematics%20(9709)/9709_s10_qp_61.pdf
  5. Charlotte20102013

    Chemistry: Post your doubts here!

    Hi, is it true to say : Addition polymers have monomers that are alkenes, and condensation polymers have monomers that are not alkenes, but that have two functional groups per molecule.? Like if I was given a monomer, and asked if it will form addition or condensation polymers, if I see an...
  6. Charlotte20102013

    Statistics S1 post your doubts here

    Hi. Can someone tell me how to determine when should I use the continuity correction and when to use only the X~Bin? I know in general you should use continuity correction when approximating Binomial distribution to Normal distribution. But that is what I don't understand. Could you guys maybe...
  7. Charlotte20102013

    Physics: Post your doubts here!

    Uhm... Can someone provide me the solution to my question please?
  8. Charlotte20102013

    Physics: Post your doubts here!

    No. And that's the problem. :(
  9. Charlotte20102013

    Physics: Post your doubts here!

    It is not a past year question, but I found it somewhere on the net.. Here's the link http://nhsaab.weebly.com/uploads/2/4/6/0/24608405/9.f_kirchhoffs_laws.pdf Example 4. Can you open this? *I'm supposed to find currents IA, IB, and IC.
  10. Charlotte20102013

    Thanks! Hope you guys could help me out with my studies :)

    Thanks! Hope you guys could help me out with my studies :)
  11. Charlotte20102013

    Physics: Post your doubts here!

    Well perhaps you could solve this for me ?
  12. Charlotte20102013

    Physics: Post your doubts here!

    Hi. I am currently in CAL and I would like to know about answering the questions on the Kirchhoff's rule questions. I understand that if I calculated a current with negative sign then the actual direction of the current is actually opposing the direction that I myself have fixed. At the end of...
  13. Charlotte20102013

    Physics Kirchhoff's Rule

    Hi. I am currently in CAL and I would like to know about answering the questions on the Kirchhoff's rule questions. I understand that if I calculated a current with negative sign then the actual direction of the current is actually opposing the direction that I myself have fixed. At the end of...
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