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  1. nightrider1993

    Mathematics: Post your doubts here!

    ya no peoblem.... im nt gud at stats
  2. nightrider1993

    Mathematics: Post your doubts here!

    Wow, i think this is one of the hardest questions i've encountered on this forum... I dont knw, i gues i like the night so this username just came up
  3. nightrider1993

    Mathematics: Post your doubts here!

    Don't worry guys i figured it out.... Just made a stupid mistake
  4. nightrider1993

    Mathematics: Post your doubts here!

    How to do the following question... How do u separate the first part.... Just found this question online
  5. nightrider1993

    Mathematics: Post your doubts here!

    the formula for volume is Volume= (pi )*( Integration of y^2) So basicly u just have to use this formula and find the answer
  6. nightrider1993

    Mathematics: Post your doubts here!

    Thats how you do it. Sory bt i dont agre with the other method. Well i've never heard of the ratio method, bt if it works then al gud. peace
  7. nightrider1993

    Mathematics: Post your doubts here!

    Since the line lies on the plane. then just insert the values of r, when lamda is zero and 1. then solve simulateously
  8. nightrider1993

    Mathematics: Post your doubts here!

    Hope u can see it clearly and understand wat i was trying to convey
  9. nightrider1993

    Mathematics: Post your doubts here!

    Just insert the values of x=a ( cos t)^3 and y= a ( sin t)^3 and for the gradient insert the value of dy/dx
  10. nightrider1993

    Mathematics: Post your doubts here!

    If the gradient is undefined then the line will be parallel to the y-axis... therfore u will only need to write the equation parallel to y-axis....ie x=-2, x=5, x=2.5 , etc
  11. nightrider1993

    Mathematics: Post your doubts here!

    I know of a site that is really good.. http://members.tripod.com/vector_applications/tutorials/index.html Hope this helps...
  12. nightrider1993

    Mathematics: Post your doubts here!

    Hope this answers it
  13. nightrider1993

    Mathematics: Post your doubts here!

    t can take any value between the value of 0 and 2.5(bt not including 2.5). Since the denominator can't b negative or zero, bcoz radius is always positive
  14. nightrider1993

    Mathematics: Post your doubts here!

    Post the link as well then i'll b able to help u
  15. nightrider1993

    Mathematics: Post your doubts here!

    For second part use help from following site. I would hv done it bt im abit busy http://members.tripod.com/vector_applications/xtion_of_two_planes/index.html
  16. nightrider1993

    Physics: Post your doubts here!

    Alternate to practical
  17. nightrider1993

    Mathematics: Post your doubts here!

    Just use the cosine rule for part a: cos x = ( (A)(B) )/ (mod(A)*mod(B)) where A= displacement vector of first plane and B= displacement vector of second plane
  18. nightrider1993

    Mathematics: Post your doubts here!

    Just find the distance between the points. Having the same distance from (2,0) shows its a circle. Just use the hypotunus theorem.
  19. nightrider1993

    P1 MCQ's preparation thread for chemistry ONLY!!!!

    Answer is C. Since, –CH2CO2CH3 ions are produced in the presence of strong base, therefore A is not possible. And since a aldehyde should react with it, B and D are not possible since both are ketones and not aldehydes.
  20. nightrider1993

    Mathematics: Post your doubts here!

    Try saving the picture on ur computer and then magnify it
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