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  1. Haris Bin Zahid

    Additional Mathematics; Post some challenging questions here

    (a) 28.1 degrees (b) 9.18 m/s (c) 3.44 s
  2. Haris Bin Zahid

    Additional Mathematics; Post some challenging questions here

    Uploaded just now. I'm only getting the first part of the question right.
  3. Haris Bin Zahid

    Additional Mathematics; Post some challenging questions here

    I'm unable to solve a relative velocity question. Have a try at it and post your solution here. Q. A footballer C runs at a speed of 5 m/s, with the ball close to his feet, in a straight line towards the point (0,0). At the instant when he passes through the point (15,20), another footballer D...
  4. Haris Bin Zahid

    Maths D 22

    Which postulate of Congruence did you mention in Paper 1. SAS?
  5. Haris Bin Zahid

    Sir what would be the advantages and limitations of a web based cruise booking system?

    Sir what would be the advantages and limitations of a web based cruise booking system?
  6. Haris Bin Zahid

    :)

    :)
  7. Haris Bin Zahid

    HARDEST QUESTION YOU HAVE EVER SEEN!!!!

    What is meant by saw tooth voltage? And how should the controls of the C.R.O be adjusted to obtain a trace of a saw tooth signal?
  8. Haris Bin Zahid

    Biology; Chemistry; Physics: Post your doubts here!

    Trigonometry. sin 30 = h / 10 h = 5 cm
  9. Haris Bin Zahid

    Biology; Chemistry; Physics: Post your doubts here!

    Both move by the same distance.
  10. Haris Bin Zahid

    Biology; Chemistry; Physics: Post your doubts here!

    Does it sound plausible?
  11. Haris Bin Zahid

    Biology; Chemistry; Physics: Post your doubts here!

    The 5 kg block falls by a height of 0.1 m. So the loss in its g.p.e was (0.1 * 5 * 10) = 5 J The 1 kg block also moves by a distance of 0.1 m..... .... So the work done against friction = F * d = 10 * 0.1 =1 J By using trigonometry, we can find out that the height of the 1 kg block increased by...
  12. Haris Bin Zahid

    Biology; Chemistry; Physics: Post your doubts here!

    Is the answer B? 1.1 m/s ? Maybe I've got it.
  13. Haris Bin Zahid

    Maths, Addmaths and Statistics: Post your doubts here!

    I have a query. Suppose in the relative velocity question, the final bearing we find is 245.0473839 degrees. Are we supposed the write our answer as 245 degree or 245.0 degree? Confused :(
  14. Haris Bin Zahid

    Maths, Addmaths and Statistics: Post your doubts here!

    Great. Thanks a lot for your consideration.
  15. Haris Bin Zahid

    Maths, Addmaths and Statistics: Post your doubts here!

    Two ships, A and B leave their ports simultaneously at 12 00 hours. The ports are 104 km apart with one port due west of the other. The speeds and directions of the two ships are shown in the diagram, where tan a = 0.75 and tan b = 2.4. Find (a) the speed and direction of the velocity of A...
  16. Haris Bin Zahid

    Maths, Addmaths and Statistics: Post your doubts here!

    Seriously, you should aim those guns in your avatar towards yourself. The extract you've quoted is actually a comment of examiner about another part of the question, not the one you're referring to. Read the examiner report which corresponds to a particular question.
  17. Haris Bin Zahid

    Maths, Addmaths and Statistics: Post your doubts here!

    I meant to say the examiner report, not the syllabus.It's a mistake on my behalf. But read the following carefully. It's an excerpt from the June 2009 examiner report: Of the candidates who got part (i) correct a high proportion went on and were able to gain full marks for part (ii) by making...
  18. Haris Bin Zahid

    Maths, Addmaths and Statistics: Post your doubts here!

    My dear friend, there's no such thing as integration by parts or u-substitution involved in this question's solution. Actually you read the Examiner's report of part (a), which instructs us to derive the value of a. In that part, you just have to substitute the value of the gradient and the...
  19. Haris Bin Zahid

    Maths, Addmaths and Statistics: Post your doubts here!

    The syllabus explicitly states that integration by parts is excluded. So which question are you talking about? Can you post it?
  20. Haris Bin Zahid

    Maths, Addmaths and Statistics: Post your doubts here!

    Then how do we answer Q11(a-iv) ? Why not in terms of stretch?
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