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  1. X

    Mathematics: Post your doubts here!

    yup give keys for three categories
  2. X

    Mathematics: Post your doubts here!

    did u get the area?? (1/24) can u show ur working plz
  3. X

    Mathematics: Post your doubts here!

    hehe lol lol lol Thanks buddy
  4. X

    Mathematics: Post your doubts here!

    lol i just end up solving for him :P
  5. X

    Mathematics: Post your doubts here!

    what is the integral of 2secxtanx ?
  6. X

    Mathematics: Post your doubts here!

    brillilant and simply awesome, May Allah give you immense Success Ameen
  7. X

    Mathematics: Post your doubts here!

    Esme Q2, Q5(iv) Q10(i,ii) Please can u share your working! http://papers.xtremepapers.com/CIE/...S Level/Mathematics (9709)/9709_w12_qp_31.pdf
  8. X

    Mathematics: Post your doubts here!

    jazakAllah sis!
  9. X

    Mathematics: Post your doubts here!

    can u share your working plz..
  10. X

    Mathematics: Post your doubts here!

    Q6 http://papers.xtremepapers.com/CIE/Cambridge%20International%20A%20and%20AS%20Level/Mathematics%20(9709)/9709_w12_qp_31.pdf whats your answer?
  11. X

    Chemistry and Physics some Keypoints/Notepoints (onDemandOnly) !! :)

    we have a paper for cHemy baby before phy so hold on plz :)
  12. X

    Chemistry: Post your doubts here!

    Their are other ways too to hit this milestone but here's the shot: u use formula E* = E(value of right) - E(Value of left) at right u can see platinium is chillin alone so electrolyte must only be containing Fe3+ and Fe2+ ions at at left Chlorine is being Pumped in so u substract 0.77(ironman...
  13. X

    Chemistry: Post your doubts here!

    For this part: because we have Phenol dude here, in phenol due to -OH group its stability is not the same as benzene gang thats why we didn't use conc Hno3 with h2so4 and high temp(also if temp is higher than 60*C than u'll be getting with benzene 2 2 NO2 (aik kai saath 2 free for high temp))...
  14. X

    Chemistry and Physics some Keypoints/Notepoints (onDemandOnly) !! :)

    Read the material you have for design and start solving for it atleast 5 years.. do u have any book, i prepared from book for application
  15. X

    Chemistry Paper 4-theory- doubts =D

    comming comming soon hold on ppl, ur bro is outrageously preparing to show cie whoz their daddy!!!! inshallah...
  16. X

    Mathematics: Post your doubts here!

    I made it the subject of formula, and i got Σx^2 - n(x~)^2 as the formula sorry but how?
  17. X

    Mathematics: Post your doubts here!

    which book??
  18. X

    Mathematics: Post your doubts here!

    yup can u explain a little plz!
  19. X

    Mathematics: Post your doubts here!

    The ages, x years, of 150 cars are summarised by Σx = 645 and Σ x^2= 8287.5. Find Σ(x − x~)^2, where x~ denotes the mean of x. ANY one plz
  20. X

    Chemistry and Physics some Keypoints/Notepoints (onDemandOnly) !! :)

    yes offcourse what discharge series have to do with electrodes(unless and untill electrodes themselves starts to give off some electrons) also a keypoint Platinium is used to increase the surface area on which oxidation reduction happen mostly when u determining E* u use standard Hydrogen cell...
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