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  1. 1

    Mathematics: Post your doubts here!

    Can someone please show me how to solve question 6 of this paper? http://papers.xtremepapers.com/CIE/Cambridge%20International%20A%20and%20AS%20Level/Mathematics%20(9709)/9709_s12_qp_61.pdf
  2. 1

    Chemistry: Post your doubts here!

    http://papers.xtremepapers.com/CIE/Cambridge%20International%20A%20and%20AS%20Level/Chemistry%20(9701)/9701_s10_qp_41.pdf http://papers.xtremepapers.com/CIE/Cambridge%20International%20A%20and%20AS%20Level/Chemistry%20(9701)/9701_s10_ms_41.pdf
  3. 1

    Chemistry: Post your doubts here!

    When do we use KCN as a reagent and when HCN? In the paper 9701/41/M/J/10 Q4 part d it asks for the reagents and in the marking scheme it says KCN and that HCN negates. So when do we use what?
  4. 1

    Mathematics: Post your doubts here!

    Thank you SO much! May you get loads of A* and great success in this life and in the hereafter!
  5. 1

    Chemistry: Post your doubts here!

    Can u explain question 2(iv) of O/N/11 of chemistry p41?
  6. 1

    Mathematics: Post your doubts here!

    f(x) = a+bcos 2x f(0)=−1 => a + bcos 2(0) = -1 Solve cos 2(0) in radian mode. => a + b = -1 and f(π/2) = 7 => a + bcos 2(π/2) = 7 => a - b =7 Solve them as simultaneous equations. a + b = -1 a - b =7 a will be 3 and b -4. Part ii) y would be 0 when the curve intersects the x...
  7. 1

    Mathematics: Post your doubts here!

    I am jumping into you conversation out of nowhere but I had the same problem... My question is, how'd you know that max (sin^2 x) = 1 and min(cos^2 x) = 0?
  8. 1

    Mathematics: Post your doubts here!

    http://papers.xtremepapers.com/CIE/Cambridge%20International%20A%20and%20AS%20Level/Mathematics%20(9709)/9709_w11_qp_33.pdf Can someone help me? Q10) i) I made an equation in u but I don't understand how to integrate it.
  9. 1

    Mathematics: Post your doubts here!

    http://papers.xtremepapers.com/CIE/...S Level/Mathematics (9709)/9709_w12_qp_33.pdf I don't get how to do Q7, Q8 ii, Q9 ii or 10... Basically last half of the paper... This paper kills...:( Someone please help? Please?:(:unsure:
  10. 1

    Mathematics: Post your doubts here!

    http://papers.xtremepapers.com/CIE/Cambridge%20International%20A%20and%20AS%20Level/Mathematics%20(9709)/9709_w12_qp_33.pdf I don't get how to do Q7, Q8 ii, Q9 ii or 10... Basically last half of the paper... This paper kills...
  11. 1

    Mathematics: Post your doubts here!

    Now that you have done it, it seems so simple and I feel stupid! Thanks a ton! :)
  12. 1

    Mathematics: Post your doubts here!

    Check it here... Do u know how to do it?:confused: http://papers.xtremepapers.com/CIE/Cambridge%20International%20A%20and%20AS%20Level/Mathematics%20(9709)/9709_w12_ms_33.pdf
  13. 1

    Mathematics: Post your doubts here!

    http://papers.xtremepapers.com/CIE/Cambridge%20International%20A%20and%20AS%20Level/Mathematics%20(9709)/9709_w12_qp_33.pdf Q.1 I am not able to solve it. Can someone help?
  14. 1

    Mathematics: Post your doubts here!

    In Stats 1 year 2012 q 4, how are we supposed to find the median and interquartile range? Do we do it by writing them all down or is there a specific method of doing it? Here's the paper I am talking about...
  15. 1

    Mathematics: Post your doubts here!

    Please help me with question 10 from the paper: http://papers.xtremepapers.com/CIE/Cambridge%20International%20A%20and%20AS%20Level/Mathematics%20(9709)/9709_w11_qp_33.pdf
  16. 1

    Mathematics: Post your doubts here!

    The video you posted is of 2012. My question was from 11.:)
  17. 1

    Mathematics: Post your doubts here!

    I need help with q 4 in math 9709/33/o/n/11. The link to the paper is: http://papers.xtremepapers.com/CIE/Cambridge%20International%20A%20and%20AS%20Level/Mathematics%20(9709)/9709_w11_qp_33.pdf I don't get it at all. :confused:
  18. 1

    Mathematics: Post your doubts here!

    Jizakillah both of you! :)
  19. 1

    Mathematics: Post your doubts here!

    Aoa! This may be a lame question but how do we solve q1 in Math A lev paper 31. http://papers.xtremepapers.com/CIE/Cambridge%20International%20A%20and%20AS%20Level/Mathematics%20(9709)/9709_s12_qp_31.pdf That's the link to the paper. The markscheme says Use correct method for solving equation...
  20. 1

    accounting

    I am I am I am
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