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  1. hredoymohammad

    Physics, Chemistry and Biology: Post your doubts here!

    how does radiation ionize air into positive and negative ions
  2. hredoymohammad

    Mathematics: Post your doubts here!

    http://www.xtremepapers.com/CIE/index.php?dir=Cambridge%20IGCSE/0580%20-%20Mathematics/&file=0580_w08_qp_02.pdf can someone do question 5 about locus pls and draw it in somewhere..i m not getting the question at all :( and thx ktc and captaindanger :)
  3. hredoymohammad

    Mathematics: Post your doubts here!

    http://www.xtremepapers.me/CIE/Cambridge%20IGCSE/0580%20-%20Mathematics/0580_s08_qp_2.pdf question 10...i m not getting it..one has solved it here http://www.xtremepapers.com/community/threads/maths-paper-2-2008-help.5422/#post-66879 but when pie r2 h where did he get 4 as radius?? it is no...
  4. hredoymohammad

    Mathematics: Post your doubts here!

    n wat about dis?
  5. hredoymohammad

    Mathematics: Post your doubts here!

    n also question 10...how to do dis..its not on a graph? :O
  6. hredoymohammad

    Mathematics: Post your doubts here!

    http://www.xtremepapers.com/CIE/Cambridge O Levels/4024 - Mathematics/4024_w10_qp_22.pdf ...can anyone help me with no 10(iv) a...i have done upto (a b) (0 1 0) = (0 2 0) but den wat?? i can find it out if it was 2 * 2 matrix...but how to deal with c d ... 0 0 1 .... 0 0...
  7. hredoymohammad

    u bangladeshi?

    u bangladeshi?
  8. hredoymohammad

    Maths, Addmaths and Statistics: Post your doubts here!

    and also question 5 b.....is there any special way to find out the answers...or we have to carry out trial and error method?
  9. hredoymohammad

    Maths, Addmaths and Statistics: Post your doubts here!

    i have a problem can anyone help me...O/N 2011 p-21 i have not understood the question 4(ii) http://www.mediafire.com/download.php?fsglx7320qqfgd5
  10. hredoymohammad

    Physics, Chemistry and Biology: Post your doubts here!

    how to be sure if any object is perpendicular or paralllel to a bench? how to arrange a set square either side of a cylinder/sphere to measure diameter? thx
  11. hredoymohammad

    ORGANIC CHEMISTRY

    my email is [email protected] u send me 2?
  12. hredoymohammad

    Mathematics: Post your doubts here!

    http://www.mediafire.com/download.php?dc1339weg11ihib also q 11 (OR) Hence show that r = 10 sin θ 1 + sin θ . i dont get the mark scheme...the sin theta value is wrong?
  13. hredoymohammad

    Mathematics: Post your doubts here!

    anyone help me ..how to express N in terms of it.....lgN = 4lgt-0.6 ...O/N 2011 p-11 ques 3ii) answer given is N=.251 t^4 but how do u reach dis..?
  14. hredoymohammad

    Math and Add maths

    Guyz if u have any prob any topic in maths...i suggest u all to take a look at this site. http://www.examsolutions.co.uk/maths-revision/index.php#Core i have found all the math videos here...hope it will help u 2..if u cant find any topic here..tell me..there r only a few which aren't here
  15. hredoymohammad

    Mathematics: Post your doubts here!

    can u tell me any link of a pdf file or anything ...relating to dis? how to do enlargement...finding the scale factor etc?
  16. hredoymohammad

    Mathematics: Post your doubts here!

    what is the difference between stretch and enlargement?
  17. hredoymohammad

    IGCSE Economics Post your doubts here.

    do u have notes for economics?
  18. hredoymohammad

    how much is A*?

    when mark schemes are published -.gt file shows only the mark boundary of A,B,C and so on...but how much more do i need to get from that of A to score an A*
  19. hredoymohammad

    Chemistey Doubts

    y it is extinguised? wats the reason?
  20. hredoymohammad

    Chemistey Doubts

    m/j 2011 p-61 no 5 b ii) ....y not the answer is lilac?
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