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  1. Jiyad Ahsan

    Chemistry: Post your doubts here!

    umm tomorrows paper.. organic chemistry contributes to about half the chem p2 paper... make sure you get hold of those stupid reactions
  2. Jiyad Ahsan

    Chemistry: Post your doubts here!

    Okay guys, just over with P5. Let me put down whatever I understood from the P5s of M/J 2002 to O/N 2010 into words. Hopefully someone can correct me when I make mistakes and yeah add to what I have written (of course!) For planning section: 1. When asked to draw a diagram, ALWAYS mention the...
  3. Jiyad Ahsan

    Chemistry: Post your doubts here!

    lol it shouldnt really matter.. though its A2, but it helps in As as well
  4. Jiyad Ahsan

    Mathematics: Post your doubts here!

    though i dnt think you guys would have any space left for me..
  5. Jiyad Ahsan

    Mathematics: Post your doubts here!

    add me in the convo pleaseeeeeee
  6. Jiyad Ahsan

    Mathematics: Post your doubts here!

    umm putting it simply find the angles that the tangent makes with the x-axis, subtract the larger from the smaller and voila you have the acute angle basically you differentiate the curve equation and first put in the x- coordinate of p then of q what you'll have is (since the gradient y/x)...
  7. Jiyad Ahsan

    Mathematics: Post your doubts here!

    you integrate the equation with limits 1 and 0 to give you the area of the first region(R1), then you do it again with limits 2 and 1 this being the region (R2) you'll have the same answers (1/4) so you can say R1=R2
  8. Jiyad Ahsan

    Mathematics: Post your doubts here!

    oh well.. umm OP is 2i, OQ is 2j+4k, OR is 4i+2j+2k PR is OR - OP PR=2i+2j+2k PQ is OQ - OP PQ= -2i+2j+2k
  9. Jiyad Ahsan

    Mathematics: Post your doubts here!

    meeeeee im giving accel. :p
  10. Jiyad Ahsan

    Mathematics: Post your doubts here!

    the answer is (11/12)pi units^3 the step before it i have pi ((-10/3(1/8) - 2/3(4)) - (-10/3 - 2/3))
  11. Jiyad Ahsan

    Mathematics: Post your doubts here!

    oki i'll just type the formula here, since V=pi ((integral)y^2) dx Volume here is V=pi ((integral) (y2^2-y1^2))dx y2 is the line, y1 is the curve you square y2 then subtract square of y1, integrate the whole thing with definite boundaries 5 and 0 multiply with pi at the end
  12. Jiyad Ahsan

    Mathematics: Post your doubts here!

    sorry man stupid webcam isnt taking the stupid photo, wait a sec
  13. Jiyad Ahsan

    Mathematics: Post your doubts here!

    daredevil the question is volume :P not area.. sorry for sounding like a know-it-all :p
  14. Jiyad Ahsan

    Mathematics: Post your doubts here!

    Q6(ii) from part one, kx^2 - kx+1, the line is a tangent therefore, b^2-4ac=0 k=0, or k=4, since k is non zero, k=4 put k=4 in the equation, (4)x^2-(4)x+1=0 x=1/2 putting it in the equation y=kx, y=(4)(1/2) y=2 for 7(iii) f(x)=(x-2)^2+3 f=hg h(g(x))=(x-2)^2+3 h(g(x))=(g(x))^2+3, take g(x)=x...
  15. Jiyad Ahsan

    Mathematics: Post your doubts here!

    ok well put it this way they say that the smallest possible value of theta in n(theta) is 10 and since the smallest angle was 30, n(theta)=30, n(10)=30 n=3 and umm the largest angle would be in the range, since 0<theta<360, we have 0<3theta<1080 the largest angle would be in the third cycle...
  16. Jiyad Ahsan

    don't expect anything, you'll only get what you deserve

    don't expect anything, you'll only get what you deserve
  17. Jiyad Ahsan

    Mathematics: Post your doubts here!

    yup exactly what panda said :)
  18. Jiyad Ahsan

    Mathematics: Post your doubts here!

    aww man this is a pretty weird question.. took me so much time to solve it well umm you found that 30 and 150 degrees in the first part right, so they say that" theta" here in [n(theta) = ?] is 10 so you plug in theta=10 and the smallest angle was 30 so umm 10n = 30 since 30 was the smallest...
  19. Jiyad Ahsan

    Mathematics: Post your doubts here!

    you have to give the value of p :P didnt you have to find the value of p in umm the first part?
  20. Jiyad Ahsan

    Mathematics: Post your doubts here!

    oh umm you have to get umm two expressions for f^-1 and then umm you give the domains for those expressions (the ranges for the f(x) expressions will be the domain for these)
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