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  1. elbeyon

    Mechanics M1: Post your doubt here

    Its quite easy. Consider angle AP1X as α. Since angle P1XP2 = 90 so angle CP2X would be 90 - α . Now resolve forces on X vertically and find out an equation with cosα, sinα and W. And again resolve forces on X horizontally and find out an equation with cosα and sinα. Then compare those equations...
  2. elbeyon

    Mechanics M1: Post your doubt here

    I guess I am but no one is perfect. I'm still a student :) . Please post your doubts if you have any .
  3. elbeyon

    Pure Maths 12 today........

    Yeah and part iii) was also tricky I managed to solve part i) but was not able to solve part iii) due to the time limit. Both of the questions were tricky but once you get the concept of tangent and angle perpendicular both of the questions could be solved with just few lines of calculations...
  4. elbeyon

    Pure Maths 12 today........

    And do you remember the values of y that you obtained ?
  5. elbeyon

    Mechanics M1: Post your doubt here

    OK now let's just forget what happened to Paper 1 and carry on with our preparation for Mechanics 1 i.e Paper 4. I created this thread separately especially for the preparation for Oct/Nov 2012. So people with any doubt on Paper 4 can post it here and I or someone else will answer it as soon as...
  6. elbeyon

    small question

    Oh ! That's only my assumption but I might be loosing more marks too :confused: . I wish the threshold would be low for this paper. And if you lost just 20 marks then you might still get a B.
  7. elbeyon

    Pure Maths 12 today........

    Does anyone knows what was the question of trigonometry's second part ? Was it cos2y = 3tan2y or some thing else ?
  8. elbeyon

    small question

    Thnks ! The paper went worst. I found it to be the most difficult paper between 2001 and 2012. I guess I'll loose about 4 to 8 marks.My luck :( ! And what about urs ?
  9. elbeyon

    Pure Maths 12 today........

    Yeah ! I guess that was the correct way of doing that.
  10. elbeyon

    Pure Maths 12 today........

    How many of you proved the question with the area of the playground ? I guess it was 3. i). I forgot the question know but I guess we were supposed to show A = bla bla bla ! How did you got it ?
  11. elbeyon

    small question

    It depends on how much marks you get on P1 and M1 and the threshold too. If you got C with higher marks on p1 and A with higher marks in m1 then you stand a good chance for an B and if the threshold for both the papers are low then you might be lucky to get even an A. But if your A and C are...
  12. elbeyon

    Pure Maths 12 today........

    Which question are you talking about ??
  13. elbeyon

    Pure Maths 12 today........

    We get two values for k ! I forgot that now but I got two values. We were supposed to equate the modulus to 1 (i.e Unit ).
  14. elbeyon

    Pure Maths 12 today........

    We were supposed to find out the second derivative in that case.
  15. elbeyon

    Mathematics: Post your doubts here!

    Can anyone explain how to obtain the values of "a" and "b" ( I got that of c, it was quite easy). How does difference in amplitude ( 9 -3 =6 ) gives the value of "a" and 2 complete oscillations gives value of "b" as 2 ? I mean how is "a" related to amplitude and "b" to oscillations ? Question...
  16. elbeyon

    How is math AS Oct/nov 2012

    Its up to you. But solving past papers will help a lot for the preparation. You get to see unique sorts of question in every individual paper. 2011 and 2012 papers has various unique questions so its better if you solve these too if you have time. (y)
  17. elbeyon

    Mathematics: Post your doubts here!

    Can any one explain to me how to get set of values as k < -√(48) and k > √(48) while solving k > +- √(48) type question. When are we supposed to use the < sign and when > sign ?
  18. elbeyon

    Mathematics: Post your doubts here!

    Now I'm clear. Thanks a ton buddy ! :)
  19. elbeyon

    Mathematics: Post your doubts here!

    whitecorp can you or someone else please explain me the M/J 2012 Paper 11 Q. no 7 b) i). Sorry no links to the papers because they are not yet uploaded in the Xtremepapers.
  20. elbeyon

    Here's how you can manage your time preparing for Physics and/or Biology Paper:1 !

    Thanks for the advice. Very much useful for not only Physics and Bio but for other subjects too. Thanks again ! (y)
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