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  1. Suchal Riaz

    Maths, Addmaths and Statistics: Post your doubts here!

    divide x^4+4x^2+x+a by x^2+x+2 using algebraic long division or synthetic division. if u dont know how to do it, search for it on khanacademy.com
  2. Suchal Riaz

    how many of you study just few hours before the exam!

    yup. 6 of them. maths add maths english physics chemistry computer
  3. Suchal Riaz

    Biology; Chemistry; Physics: Post your doubts here!

    ask ur teacher about component vectors. you better understand Haris Bin Zahid method i like it more as it is simpler for an ordinary o level physics student. it was actually meant to be done that way.
  4. Suchal Riaz

    Biology; Chemistry; Physics: Post your doubts here!

    i leanred about vectors in MIT's first year physics course. at that time i had not done vectors in add maths but i had no difficulty in any vector operation.
  5. Suchal Riaz

    Biology; Chemistry; Physics: Post your doubts here!

    u must be talking about reflux condenser. i heard it several time in class. it is used in organic reactions when u r afraid that the volatile liquid such as ethanol will evaporate during reaction as it condenses it back.
  6. Suchal Riaz

    how many of you study just few hours before the exam!

    HAHA i got the same problem with me , i mean Maths has created a horrific reputation and if u have a bad teacher then it makes matters worse. try avoiding friends before a math exam , they always brag about how much they study .Just go in the exam hall and do your thing :) actually i feel...
  7. Suchal Riaz

    how many of you study just few hours before the exam!

    in my dreams i try to solve questions which look very difficult in dream. i even remember the question which i could not solve and laugh when i remembered my dream. :D
  8. Suchal Riaz

    Biology; Chemistry; Physics: Post your doubts here!

    my teacher taught us this that component vectors are used to deduce the force acting downwards so it must be in syllabus. although i managed to remember it coz i have used component vectors many times in addmaths. although method of Haris Bin Zahid seems more 'o level' method. a normal o level...
  9. Suchal Riaz

    Biology; Chemistry; Physics: Post your doubts here!

    show the structure of polymer first. the monomer(single molecules) which combine to create polymer are called repeat unit as they are repeated again and again in polymer.
  10. Suchal Riaz

    Biology; Chemistry; Physics: Post your doubts here!

    can u show me how he solved it?
  11. Suchal Riaz

    Biology; Chemistry; Physics: Post your doubts here!

    not a difficult but need little bit of vector manipulation. do u know about component vectors? see this. Saad Mughal u would understand it easily coz u know about component vectors: i hope i made no silly mistake in calculation.
  12. Suchal Riaz

    Maths, Addmaths and Statistics: Post your doubts here!

    PlanetMaster the paper uploaded here has an error due to which everybody was getting wrong answer, nidz has pointed it out that real paper was different. Moreover the examiner reports for w11 are also not uploaded. please check it out. thanks in advance.
  13. Suchal Riaz

    Maths, Addmaths and Statistics: Post your doubts here!

    can u tell me any topic in maths which is as difficult as permutation/combination, relative velocity and long 6-9 marks coordinate geometry questions.
  14. Suchal Riaz

    forget about book reading. do past papers from 2003+ without looking at the answers. then...

    forget about book reading. do past papers from 2003+ without looking at the answers. then checkem from marschemes.
  15. Suchal Riaz

    Maths, Addmaths and Statistics: Post your doubts here!

    i m too lazy to check. last year i looked here and there and did not check paper still got highesr grades. straight A*s:D
  16. Suchal Riaz

    Maths, Addmaths and Statistics: Post your doubts here!

    there is NO WAY a person does not get 100% but if he makes mistakes
  17. Suchal Riaz

    Maths, Addmaths and Statistics: Post your doubts here!

    man i know what f' is from my first lesson on khan academy ;) it was just a brain malfunction, and if luck did not allow it to happen in examination i m sure i can get distinction. but my mind never get satisfied unless it makes atleast one silly mistake in a paper.
  18. Suchal Riaz

    Maths, Addmaths and Statistics: Post your doubts here!

    DAFUQ! I knew my mind had some malfunction. i read fprime and write f inverse! btw thanx for pointing it out
  19. Suchal Riaz

    Maths, Addmaths and Statistics: Post your doubts here!

    if f-inv(1/2)=0 then f(0)=1/2 isn't it?
  20. Suchal Riaz

    Biology; Chemistry; Physics: Post your doubts here!

    answer is D because the volume of HCL solution wont change although the mass of calcium carbonate will change but not of solution. concentration of HCL will change however.
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