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  1. I

    Physics: Post your doubts here!

    what's R*E/R+S ? I didn't get that
  2. I

    Physics: Post your doubts here!

    yep 37. B 38. A
  3. I

    Physics: Post your doubts here!

    this one too:
  4. I

    Physics: Post your doubts here!

    Thought blocker Need help...don't need the solution just tell me how to solve. I know first we use resistance for resistors in parallel, and I get 100 ohms...what next?
  5. I

    Physics: Post your doubts here!

    also this, how is this done ?
  6. I

    Physics: Post your doubts here!

    no no...I disagree, in fact totally disagree :p If a person's coming into car decreased it's speed then his going away must increase the speed why shouldn't it?
  7. I

    Physics: Post your doubts here!

    It's strange because when sand is added, the velocity decreases but when it leaves, makes no difference?!:confused:
  8. I

    Physics: Post your doubts here!

    Why is the answer B?
  9. I

    Mathematics: Post your doubts here!

    I'm using the right method as shown in the markscheme and I get the equations right, but somehow I can't get the correct answer. Why? I get the tensions as 6.43 and 4.82
  10. I

    How was 9702 Physics paper 2

    unexpectedly easy... went well
  11. I

    Toughest Math P3 doubts! Here.

    YES exactly I also found it in my notes, the very same question...here is how it's done
  12. I

    Toughest Math P3 doubts! Here.

    do tell me when you get an answer
  13. I

    Toughest Math P3 doubts! Here.

    why not post on examsolutions
  14. I

    Toughest Math P3 doubts! Here.

    yes I think so
  15. I

    Toughest Math P3 doubts! Here.

    how? :(
  16. I

    Toughest Math P3 doubts! Here.

    yes exactly thanks a lot that's the mistake I was doing (y)
  17. I

    Toughest Math P3 doubts! Here.

    why will you consider 1 - i sqrt(3) I don't know but I would draw a circle with center (0, -1) and a line that makes an angle of pi/3 with the positive x-axis, that seperates my circle in two segments, I would shade the lower segment... but I'm not sure if I'm right, I'm having trouble in...
  18. I

    Toughest Math P3 doubts! Here.

    whoa! I got the integral right, it was | (x^2 cos2x)/2 + xsinx/2 + cos2x/4 |
  19. I

    Toughest Math P3 doubts! Here.

    In q1: I've got (3x-1)In4 = In3 +xIn5 how do I solve it further? and in q3: I get 1/8 [(π^2) -2] instead of 1/8 [(π^2) -4]
  20. I

    Toughest Math P3 doubts! Here.

    get it now thanks (y)
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