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  1. Thought blocker

    Mathematics: Post your doubts here!

    You already know one line is y = x The other eqn of line can be found as i showed! for the gradient use the formula the angle between two lines formula. :) CAN YOU HELP ME OUT IN THIS : https://www.xtremepapers.com/community/threads/mathematics-post-your-doubts-here.9599/page-884#post-969456 ?
  2. Thought blocker

    Mathematics: Post your doubts here!

  3. Thought blocker

    Mathematics: Post your doubts here!

    http://dynamicpapers.com/wp-content/uploads/2015/11/9709_w15_qp_33.pdf Q8(ii) The formula is |a||b|.cos(x) = a.b then why we do |a||b|.sin(x) = a.b Q8(iii) I got that one vector (-3,11,-20) how to find the other vector? Doubts cleared. ^_^ Ty.
  4. Thought blocker

    Mathematics: Post your doubts here!

    You guys can vote the link in my signature, the first link in blue and do like it if i helped u guys :D It contains the best revision resource of PCM :cool: ur mbs wont be wasted :LOL:
  5. Thought blocker

    Mathematics: Post your doubts here!

    They have used that to show the points satisfying in that region. The same is explained by : The easy way to remember this thing is : if any inequality with < 0 then the roots will be sth like : less positive/ more negative value < x < more positive/ less negative value if with > o then, x...
  6. Thought blocker

    Mathematics: Post your doubts here!

    Diagram not to scale. Just for an idea. red line = cos(pi/4) * 3 blue line = sqrt(3^2 + 3^2) + 1
  7. Thought blocker

    Physics: Post your doubts here!

    Like and vote : This link has many other resources too.. ^_^
  8. Thought blocker

    Mathematics: Post your doubts here!

    1/4? Substitute that z in that denominator so it will be : 1/(2cos(theta) - i(sinn(theta))) then solve this as u usually solve your complex number problems when u have denominator in terms of i. you will get 1/4 as the real part. :)
  9. Thought blocker

    Infrared Spectroscopy (AS)

    Go to chemguide.co.uk (Y)
  10. Thought blocker

    May June 2016 As and A level Papers

    No science subs? :P
  11. Thought blocker

    Will it be A B or C?

    I know this feeling brother. xD
  12. Thought blocker

    Will it be A B or C?

    This is so true. But this feels safe, u see! xD
  13. Thought blocker

    Will it be A B or C?

    If it was a higher B then a C if a lower B then a D. :)
  14. Thought blocker

    Mathematics: Post your doubts here!

    For the one triangle BXC : The area of segment formula u found out in a(ii) use that to find the area of segment BC with r = 4 and alpha = pi/6 = 8pi/3 - 4sqrt(3) The area of triangle BXC = {1/2 * 2 * 2sqrt(3)/3 } * 2 = 4sqrt(3)/3 The shaded region BXC = area of triangle BXC - Area of segment BC...
  15. Thought blocker

    Mathematics: Post your doubts here!

    Welcome :giggle:
  16. Thought blocker

    Physics: Post your doubts here!

    http://pastpapers.papacambridge.com/Cambridge%20International%20Examinations%20(CIE)/AS%20and%20A%20Level/Physics%20(9702)/2015%20Jun/9702_s15_qp_53.pdf Q2 d)(ii) My y intercept for best fit is 3.54, for wort fit is 3.33 so my y interecept with uncertainity is 3.54 +/- 0.21 yes ? So now how...
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    Thanks for following me ^_^

    Thanks for following me ^_^
  18. Thought blocker

    A Level Physics(9702) All Papers n Mark Schemes M/J 2016

    https://www.xtremepapers.com/community/threads/may-june-2016-as-and-a-level-papers.43735/
  19. Thought blocker

    Maths notes

    np! ^_^
  20. Thought blocker

    Mathematics: Post your doubts here!

    you should know differentiation of tan x = sec^2x not integration. Integration of tan x = - ln |cosx| use reverse chain rule to get the integral of tanx :) good luck ;)
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