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  1. OakMoon!

    Add Maths Oct/Nov 2010 Paper

    sqr(43+30sqr2)=5+3sqr2 Agreed? 86+60sqr(2)=2[43+30sqr(2)] Agreed? Sqr2*sqr[43+30sqr(2)]=sqr2*(5+3sqr2) iii) is not even a surds question. It is a simple quadratic expansion. (a+b)^2=a^2+2ab+b^2. Whie (a-b)^2=a^2-2ab+b^2.. So simply write the answer 5-3sqr2. It's a one mark question. 43+30sqr2...
  2. OakMoon!

    Add Maths Oct/Nov 2010 Paper

    Did you look at the marking scheme of this question? I am sure you'll understand after looking at it. It is a simple surd question. Here is the ms for this paper.
  3. OakMoon!

    IGCSE IT (0418) Paper 2,3 2011

    This is against the XPF rules since this is cheating.
  4. OakMoon!

    Further MAth doubt!! please help asap

    You are welcome. :) Even if I do get an answer, I won't be able to explain it to you as it'll just pass over my head until I get the concept. Most probably, I'll be done with this topic in 2 weeks. I can give it a try then.
  5. OakMoon!

    Further MAth doubt!! please help asap

    Sorry man, I won't be able to help you here. I am still set to do vector spaces in my class. So I am not aware of this topic.
  6. OakMoon!

    Is it possible to apply university with just AS level?

    You can apply with As level grades. But you have to give A2 because As levels itself is not a qualification.
  7. OakMoon!

    Biology

    These are notes for Olevel's biology and I hope they will be of help to you, too. :)
  8. OakMoon!

    plan diagrams and graticule...

    Not really. Just use the proportion rule in that too. Make sure your lines are clean and its not a sketch. The lines should be unbroken and drawn in one go. Do not shade. Since, its a high power drawing, you may see the nucleus or other organelles so just draw them. The best tip: Draw what you see.
  9. OakMoon!

    Further MAth doubt!! please help asap

    lol! I am just a student. :P Its just that this question came in a class test and I was totally blank and then the teacher explained it to us. So I remember the soution to this question quite well because I made a mistake in it. :D You can ask any problem. I'll be glad to help. :)
  10. OakMoon!

    Attendance Register

    This topic should be deleted.
  11. OakMoon!

    plan diagrams and graticule...

    I think thickness refers to width and the length. You don't have a 3D microscope to measure the actual thickness. Since, its usually a transverse section, the length is actually the thickness of the tissue. So the thickness in the drawing should be relative to that in the microscope.
  12. OakMoon!

    Further MAth doubt!! please help asap

    Remember one thing. In series when you can't come to a conclusion by just looking at the formula, then you should put in the values of n and observe the sequence formed. Look at the picture below. Tell me if you don't understand anything. :)
  13. OakMoon!

    Further MAth doubt!! please help asap

    Where are you finding a1 like this. Use the identities method. Find the first differential of (lnx/x) ofr a1 and then the 2nd differential for a2 and third differential for a3. Why are you finding these equations? d/dx(lnx/x)=-lnx+1/x^2 over here we put in n as 1. So a1 will be -1 as it is the...
  14. OakMoon!

    Further MAth doubt!! please help asap

    I am sure you were done with part one as it is simple differentiation with the quotient rule. We don't really need to find the value of b. We just need the 3 values of a that are -1,2 and -6. And we have to establish a formula by observing this and then prove it. As we can see the three values...
  15. OakMoon!

    Maths P3 s10_qp_31.

    In calculus, the chain rule is a formula for computing the derivative of the composition of two or more functions. The chain rule formula states dy/dt=dy/dx*dx/dt... This formula is used when there are three variables instead of two. Different rules of calculas are derived from this rule.
  16. OakMoon!

    plan diagrams and graticule...

    Actually, your diagram should be proportionate to the specimen on the slide. Use the graticule to measure the length and then the width of the specimen under the microscope. And then using the same proportion you should draw your diagram. For e.g if the width of the specimen is .5mm and the...
  17. OakMoon!

    physics, confusions

    You are welcome. :)
  18. OakMoon!

    physics, confusions

    4.When the resistance across a component increases the voltage drops, given that current remains constant. This is due to ohms law that states V=IR. Increase in resistance increases voltage. 5. Yes, Celcius and Centigrade are the same. Different terms are used in different countries. 6. A...
  19. OakMoon!

    physics, confusions

    1. Yes they can. Materials of different mass and of different heat capacity retain different amounts of heat even when at the same temperature. 2. Moving objects offer resistance too. Its called inertia. Which is for both moving and stationary object. Friction is basically for moving objects...
  20. OakMoon!

    WEBSITES FOR STUDYING.

    www.skoool.co.uk This website has good interactive lessons for the sciences and maths subjects of all levels.
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