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  1. rgrock98

    Toughest Math P3 doubts! Here.

    it should be 0.5 ln|sec2x|
  2. rgrock98

    Toughest Math P3 doubts! Here.

    i tried it and i was getting the same result. check for any sign errors and stuff. Also are u writing mechanics 1 this friday
  3. rgrock98

    Toughest Math P3 doubts! Here.

    uhmm .............because ............. i forgot that XD . But it should give the same result since u derive the formula above by the method i stated
  4. rgrock98

    Toughest Math P3 doubts! Here.

    for that you just convert the tan2x and tanx to sin and cos; and then use the integral of :- f '(x) / f(x) = ln |f(x) | +c
  5. rgrock98

    Toughest Math P3 doubts! Here.

    https://drive.google.com/open?id=0ByjLCrFu0tDHM3RrbVA0MmhOV1E
  6. rgrock98

    Toughest Math P3 doubts! Here.

    wasnt able to upload the image
  7. rgrock98

    Toughest Math P3 doubts! Here.

    i did it like this . Also do u remember what roots u had for the complex number question
  8. rgrock98

    Toughest Math P3 doubts! Here.

    the Yh i got all of them im pretty sure. Only one im not sure about is the roots to complex equation cause i couldnt cross check it Do you remember the trig question ?
  9. rgrock98

    Toughest Math P3 doubts! Here.

    thanks man Paper 32 was pretty easy
  10. rgrock98

    Toughest Math P3 doubts! Here.

    BTW just a general question. For sketching an argand diagram will we do it on the answer sheet or on graph paper?
  11. rgrock98

    Toughest Math P3 doubts! Here.

    yh you can use that or take our sec^2 x common so we get something like :- sec^2 x(sec^2 x - 1) and equate it to (tan^2 x + 1) * (tan^2 x)
  12. rgrock98

    Toughest Math P3 doubts! Here.

    would like to point out that you got tan^4 x - tan^2 x when you should be working to get tan^4 x +tan^2 x
  13. rgrock98

    Toughest Math P3 doubts! Here.

    thanks alot. is anyone here also writing further maths?
  14. rgrock98

    Toughest Math P3 doubts! Here.

    how to find beta in this? (its s14_qp31)
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