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  1. M.Omar

    Maths, Addmaths and Statistics: Post your doubts here!

    Abt tht vector question...u reverse or change the signs when u basically look for tht vector of smage magnitude but opposite direction.I know I am pretty late but just so u know
  2. M.Omar

    Maths, Addmaths and Statistics: Post your doubts here!

    Is the link right.I mean is the question abt the interest? and like tht
  3. M.Omar

    Maths, Addmaths and Statistics: Post your doubts here!

    Look at the doc first So now we can find the gradient of a+b take its inverse reciprocal to find the perp line gradient which will be -4/3 and we can simply identify its unit vectors i.e perp a+b =3i-4j or the vector perp can also be 4j -3i Well the question was raised by FLRNAB though I cud...
  4. M.Omar

    Maths, Addmaths and Statistics: Post your doubts here!

    U cant directly find them if they r perpendicular... i.e a+2b for instance ...coz tht will yield to a new vector tht cant be expressed as a scalar multiple of the said vector,no specific rule for this coz a and b can vary in dir and size to do this we need to find these vectors in terms of their...
  5. M.Omar

    Maths, Addmaths and Statistics: Post your doubts here!

    Coincidence wht u wrote in refr index question I wrote tht as well refr index of blue and red light diff wala part in partivular Copy cat :p
  6. M.Omar

    Maths, Addmaths and Statistics: Post your doubts here!

    F For 11c the {0 -1 1 0} are multiplied by h and k giving -k and h then translation is {-3 -3} so [-k +[-3 = [h h] -3] k I leave the math to u..Plus it can be found by observations as...
  7. M.Omar

    Maths, Addmaths and Statistics: Post your doubts here!

    Ahm ahm .. wht r u talking abt:many of my class fellows wrote the same thing!
  8. M.Omar

    Maths, Addmaths and Statistics: Post your doubts here!

    It,s like this ..the syetem bears similarity with lever function in the sense tht force is multiplied But like tht Priniple of conservation of energy is applied as work done by the smaller force over larger distance =work done by larger force over smaller distance U can also check this by...
  9. M.Omar

    Maths, Addmaths and Statistics: Post your doubts here!

    Well tht,s the obv answer for tht part work done by smaller F over larger d=reverse argument and thus and thus. I wrote tht
  10. M.Omar

    Maths, Addmaths and Statistics: Post your doubts here!

    yar,,I wanted to know wht resources u r referring to study for comp P1 AND P3 Can u give me the most useful sites u r referring or any notes or sth like tht for P1 and P3 . any source will do as a matter of fact.
  11. M.Omar

    Maths, Addmaths and Statistics: Post your doubts here!

    Heck no..... Physics P2 was actually kinda difficult(P1 easy as pie and P4 was actually a standard one;a bit lower at most) and chm ppr 1 and 2 though standard were admittedly relatively difficult than P4(the ppr tht came before)
  12. M.Omar

    Maths, Addmaths and Statistics: Post your doubts here!

    Yeah I know I was just telling him tht sessions performance matters which is by the way consistent and thus 90% it is.
  13. M.Omar

    Maths, Addmaths and Statistics: Post your doubts here!

    Well give me the result statistics and I will hook up a cumulative frequency curve and find the top 15 % students and their corresponding percentile and then I cud tell u:/ Yar simply,we can have no clue before they r dep on session,s performance
  14. M.Omar

    Maths, Addmaths and Statistics: Post your doubts here!

    +ve.. ur answers are correct
  15. M.Omar

    Maths, Addmaths and Statistics: Post your doubts here!

    So i guess everyone here lost at least a mark? for the litres convert cm^3 to litres by dividing by 1000 as 1dm^3 =1 litre and 1000cm3=1dm3 Depth =volume/base area (base area does not change) so u simply figure out wht this base ara is The surface in contact is basically the bottom of the...
  16. M.Omar

    Maths, Addmaths and Statistics: Post your doubts here!

    affirmative
  17. M.Omar

    Maths, Addmaths and Statistics: Post your doubts here!

    it was 0.5!
  18. M.Omar

    Maths, Addmaths and Statistics: Post your doubts here!

    outside p =1020 cm which gives 2(4x +5y)=1080 and for total perimeter 2(6x+3y) +2(4x+y)=1360 U can simplify further
  19. M.Omar

    Maths, Addmaths and Statistics: Post your doubts here!

    wht abt is equal to sign? x=>1 same for y ?
  20. M.Omar

    Maths, Addmaths and Statistics: Post your doubts here!

    Wht abt the timetable question and inequalities wht did u get as inequalities
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