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  1. D

    WTF CHEMISTRY PAPER 42 IS SO HARD

    I got 3 chiral carbons
  2. D

    Chemistry: Post your doubts here!

    http://maxpapers.com/syllabus-materials/chemistry-9701-a-level/attachment/9701_w14_qp_41/ q1a(ii)... Why do we multiply by 27??
  3. D

    Biology paper 52

    For the dealing with the anomalies question, could we write draw a graph and tally the readings from it when
  4. D

    Biology paper 52

    How did u use c1v1 = c2v2?
  5. D

    Biology paper 52

    What did u guys write for the anomalies one?
  6. D

    Biology paper 52

    Didn't it have to be consecutive age groups :/
  7. D

    Biology 52 Tips and Guesses!

    Headings? Those aren't there in the marking scheme..just write in point form. It'll be find I guess
  8. D

    Mathematics: Post your doubts here!

    Do we integrate the equation :S should we open the brackets first?
  9. D

    Mathematics: Post your doubts here!

    Can someone please do part 1. Thanks
  10. D

    Mathematics: Post your doubts here!

    How do we solve This: e^2x = 1 / 5-e^0.5??
  11. D

    Mathematics: Post your doubts here!

    In paper 3 how do we obtain the modulus and argument?
  12. D

    Mathematics: Post your doubts here!

    I don't get 5(2). If x-2 is a factor of the equation, why is it also a factor of the differential of the equation :S
  13. D

    Mathematics: Post your doubts here!

    if x-y is a factor of a polynomial and if you use substitute y in the differential equation of the polynomial does the answer have to be zero?? Why?
  14. D

    Mathematics: Post your doubts here!

    How did you expand (x+3x^2)^4?
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