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Recent content by vCarbon

  1. V

    i need c4 mark scheme or answers for june 2013

    I'm pretty sure Arsey has done one and it will be on TheStudentRoom forums at midnight, which is the official time to start talking about the exam and it's answers. Here is a link if your not familiar with the Forum: http://www.thestudentroom.co.uk/forumdisplay.php?f=373 Around midnight a...
  2. V

    C4 today...Summer 2013

    Yes but they were given to you on the Left Hand Side of the equations, which had the original x's in it. If the question started with the integration of an equation which had limits and x's, then wouldn't you use substitution and change the limits? Part (a) was just doing the substitution but...
  3. V

    C4 today...Summer 2013

    I remember having to use partial fractions. I wasn't sure on whether to change the limits? After part (a) they gave the equations again and the limits were 9&1 but the limits were on the equation with x's in it (LHS). I thought that you may need to change limits as we used substitution?
  4. V

    C4 today...Summer 2013

    2Pi the question was where you have to use pi (integration) y^2 dx
  5. V

    C4 today...Summer 2013

    Agree with most of that. 7b) I got (-3,6) 8a) I got p=-1 8b) I got somewhere along the calculations 8tan45 = 8. Then you know B was either on the left hand side or right hand side of A, so I added 8 to the i coordinate of position A and subtracted 8 from the i coordinate of position A.
  6. V

    C4 today...Summer 2013

    It was either 3root3 / 5 or 4 significant number / 4 significant number || where significant number is 1234 for example. || I can't remember what the numbers were.
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