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Recent content by Becky250892

  1. B

    Mathematics: Post your doubts here!

    Can someone help me with a P3 Question. Paper 33 of S11 Question no 8. I do not get how to differentiate it? The diagram shows the curve y = 5sin^3xc os2x for 0 ≤ x ≤ 1/2π, and its maximum point M. (i) Find the x- coordinate of M. (ii) Using the substitution u = cos x, find by integration...
  2. B

    Mathematics: Post your doubts here!

    Isn't 2x^2-8x + 10 = 2((x^2-4x)+10) =2(x^2-4x+4-4) +10 = 2((x-2)^2-4)+10 = 2(x-2)^2-8+10 = 2(x - 2)^2+2 ? Then F^-1 will be y= 2(x-2)^2+2 = under root y-2/2 +2
  3. B

    Mathematics: Post your doubts here!

    QUESTION : A geometric progression has a third term of 20 and a sum to infinity which is three times the first term. Find the first term. [4]
  4. B

    Economics, Accounting & Business: Post your doubts here!

    Accounting A2 - M/J/2005/Paper 4 Question 2) Part b) I just want to know how to calculate Stock and Trade Creditors! I've tried everything and I cannot seem to get the answer of $162857! PLEASE HELP!
  5. B

    Accounting A Levels O/N/2009 Paper 42

    So I've noticed that in the accounting papers, they award marking for working out. However in the marking scheme my working out is different to the marking scheme working out. Yet I still obtain the same answer. Is this a problem, since they will award marks to their method of working out? For...
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