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  1. Haris Bin Zahid

    Maths, Addmaths and Statistics: Post your doubts here!

    Look at these two transformations: 1. Stretch with y-axis as invariant line and stretch factor of -1. 2. Reflection in the y-axis. Aren't 1 and 2 the same?
  2. Haris Bin Zahid

    Maths, Addmaths and Statistics: Post your doubts here!

    But there are coordinates of y which are greater than 11.....:(
  3. Haris Bin Zahid

    Maths, Addmaths and Statistics: Post your doubts here!

    Please anyone explain me (Q7-ii-b). I know the coordinates but am confused about the nature of the stationary point with a modulus function. How on earth can it be maximum?
  4. Haris Bin Zahid

    When some blessings come to you, do not drive them away through thanklessness. (Hazrat Ali)

    When some blessings come to you, do not drive them away through thanklessness. (Hazrat Ali)
  5. Haris Bin Zahid

    Urgent !!

  6. Haris Bin Zahid

    Urgent !!

    Here you go....
  7. Haris Bin Zahid

    Maths, Addmaths and Statistics: Post your doubts here!

    Oh my goodness! Your answer is absolutely right!!!!! You're a life saver, believe me. Thank you so much for the reply. (y):)
  8. Haris Bin Zahid

    Maths, Addmaths and Statistics: Post your doubts here!

    Anyone please answer this question. I've got my mock tomorrow and I don't even have a vague idea how to solve this problem: A shelf is to contain 7 different books, of which 4 were written by Dickens and 3 by Hardy. Find the number of arrangements in which the first two books at the left-hand...
  9. Haris Bin Zahid

    Maths, Addmaths and Statistics: Post your doubts here!

    Thanks a lot for sparing your precious time to answer my question. But I'm afraid, the speed is 39.7 km/h and bearing is 251.
  10. Haris Bin Zahid

    Maths, Addmaths and Statistics: Post your doubts here!

    Please I need full explanation of this relative velocity question: A coastguard station receives a distress call from a ship which is travelling at 15 km/h on a bearing of 150°. A lifeboat leaves the coastguard station at 15 00 hours; at this time the ship is at a distance of 30 km on a bearing...
  11. Haris Bin Zahid

    Maths, Addmaths and Statistics: Post your doubts here!

    You cannot multiply 5 and 3^y together. Go through the rules of indices. For this question , use the substitution x = 3^y, form a quadratic equation and then calculate the value of y. y = 1.46, correct to 3 s.f..
  12. Haris Bin Zahid

    Maths, Addmaths and Statistics: Post your doubts here!

    That's wrong: you've made an error in expansion of (-4-2p)^2. It should be 16 + 16p +4p^2. Secondly, when the question asks you to prove something, you have to show that whatever is stated in the question is true. You simply started off with a '>=' right away-which is undoubtedly an improper...
  13. Haris Bin Zahid

    Biology; Chemistry; Physics: Post your doubts here!

    1. The power that the circuit is delivering to the device (whatever it is) is slightly less than 0.25 W. Hence, a 0.25 W resistor would be suitable for the circuit. A lower power rated resistor would most likely cause the circuit to heat up and in some cases smoke, since the resistor would be...
  14. Haris Bin Zahid

    computer project..

    I'm uploading a tremendous resource for Paper 2. It may be tempting for you to copy out the material, but please don't make that gruesome mistake. This document came along with the Computer Studies endorsed book, so you may be in trouble if you copy out any material. It should be used solely for...
  15. Haris Bin Zahid

    Cambridge Outstanding Learner Awards 2012

    https://www.facebook.com/cie.org.uk?filter=2
  16. Haris Bin Zahid

    Cambridge Outstanding Learner Awards 2012

    CIE will be producing an awards brochure which provides the details of the Outstanding Cambridge Learners in Pakistan for the June 2012 examination series. This will be published at the End of February. However, the examination centres will be informed in the first two weeks of February. There...
  17. Haris Bin Zahid

    Islamiat notes

    I'm sharing some Islamiat notes which I myself made for personal study last year. They contain topical questions (2002-11) and much more data, which might be helpful to candidates appearing for the exam this year. The practice papers may come in handy while you're doing the final preparation...
  18. Haris Bin Zahid

    CIE- Nov 2012 Add Maths Paper 2 4037/22

    Can you please upload the question paper?
  19. Haris Bin Zahid

    The strongest man is the one who subdues his self.

    The strongest man is the one who subdues his self.
  20. Haris Bin Zahid

    Igcse active books available (here)

    The active books for Edexcel IGCSE Physics, chemistry, biology, economics and accounting along with answers are available. Please follow the link: http://nzkhanew.wikispaces.com/Edexcel IGCSE Student Books
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