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Recent content by asexamskillme111

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    Mathematics: Post your doubts here!

    http://papers.xtremepapers.com/CIE/Cambridge%20International%20A%20and%20AS%20Level/Mathematics%20(9709)/9709_s12_qp_31.pdf Can someone please explain why the circle has to pass through the origin in 4 ii? I understand that there's a circle. What I did is I made the radius of the circle equal...
  2. A

    Mathematics: Post your doubts here!

    http://papers.xtremepapers.com/CIE/Cambridge%20International%20A%20and%20AS%20Level/Mathematics%20(9709)/9709_s10_qp_43.pdf Can someone explain the last two parts of question 7 for me please? Thank you.
  3. A

    Mathematics: Post your doubts here!

    lny - ln70 = e^-3t - 1 Can someone rearrange this to make y the subject? If you would show me steps that would be helpful
  4. A

    Mathematics: Post your doubts here!

    lny - ln70 = e^-3t - 1 Can someone rearrange this to make y the subject? If you would show me steps that would be helpful
  5. A

    Mathematics: Post your doubts here!

    http://papers.xtremepapers.com/CIE/Cambridge%20International%20A%20and%20AS%20Level/Mathematics%20(9709)/9709_w11_qp_33.pdf Q 9 part iii. The marking scheme uses a formula. I can't exactly remember what the formula and I can't find it anywhere. Help anyone?
  6. A

    Mathematics: Post your doubts here!

    http://papers.xtremepapers.com/CIE/...S Level/Mathematics (9709)/9709_s10_qp_43.pdf Can someone do Q7? I think I've asked a question like this before. I don't get why only box A is involved in the calculation for part ii. I also don't get how to go along solving for part iii. Thank you.
  7. A

    Mathematics: Post your doubts here!

    http://papers.xtremepapers.com/CIE/Cambridge%20International%20A%20and%20AS%20Level/Mathematics%20(9709)/9709_s10_qp_43.pdf Can someone do Q7? I think I've asked a question like this before. I don't get why only box A is involved in the calculation for part ii. I also don't get how to go along...
  8. A

    Mathematics: Post your doubts here!

    http://papers.xtremepapers.com/CIE/Cambridge%20International%20A%20and%20AS%20Level/Mathematics%20(9709)/9709_w10_qp_43.pdf Q5 part (ii) So I've found the value of R and I can't get myself to understand where theta is exactly. Can someone help by drawing a diagram or otherwise? Thank you.
  9. A

    Mathematics: Post your doubts here!

    http://papers.xtremepapers.com/CIE/...AS Level/Mathematics (9709)/9709_w04_qp_4.pdf Q6. I don't get why in the marking scheme they only consider Fmax of the box on top. Help please.
  10. A

    Mathematics: Post your doubts here!

    http://papers.xtremepapers.com/CIE/...AS Level/Mathematics (9709)/9709_w04_qp_4.pdf Q6. I don't get why in the marking scheme they only consider Fmax of the box on top. Help please.
  11. A

    Mathematics: Post your doubts here!

    http://papers.xtremepapers.com/CIE/Cambridge%20International%20A%20and%20AS%20Level/Mathematics%20(9709)/9709_w04_qp_4.pdf Q6. I don't get why in the marking scheme they only consider Fmax of the box on top. Help please.
  12. A

    Mathematics: Post your doubts here!

    http://papers.xtremepapers.com/CIE/Cambridge%20International%20A%20and%20AS%20Level/Mathematics%20(9709)/9709_s10_qp_31.pdf question 7 part (iii) i dont know how to go about solving the question. help pleaase
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    Chemistry: Post your doubts here!

    Can anyone help me with 2008 Oct/Nov paper 4 question 2 (b). http://papers.xtremepapers.com/CIE/...d AS Level/Chemistry (9701)/9701_w08_qp_4.pdf I don't understand how they got the numerical values. Thank you.
  14. A

    Chemistry: Post your doubts here!

    Can anyone help me with 2008 Oct/Nov paper 4 question 2 (b). http://papers.xtremepapers.com/CIE/Cambridge%20International%20A%20and%20AS%20Level/Chemistry%20(9701)/9701_w08_qp_4.pdf I don't understand how they got the numerical values. Thank you.
  15. A

    Mathematics: Post your doubts here!

    LOL. No idea what I was thinking. Must've had a dumb moment.
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