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  1. asd

    Maths, Addmaths and Statistics: Post your doubts here!

    That's the wrong concept :D Actually you do it only when the triangles are similar, in this case, they are not. And no, the answer is 2:5 . Dk where the hell did it come from.
  2. asd

    Maths, Addmaths and Statistics: Post your doubts here!

    No, not stretch. If it was a stretch then there would have been no (6,0) but (6,2) instead. And, the point before y-axis would have moved to further left. It is ONLY enlargement.
  3. asd

    Maths, Addmaths and Statistics: Post your doubts here!

    http://www.xtremepapers.com/papers/CIE/Cambridge%20International%20O%20Level/Mathematics%20D%20(Calculator%20Version)%20(4024)/4024_s10_qp_11.pdf 20 part b.
  4. asd

    Maths, Addmaths and Statistics: Post your doubts here!

    In enlargement, the whole figure is enlarged/diminished without it's shape being changed. In stretch, the figure will be stretched either upwards/sideways and the shape changes too. However, in a double stretch (two-way stretch) with the same stretch factor, you are actually enlarging the...
  5. asd

    Maths, Addmaths and Statistics: Post your doubts here!

    AQ = (2p + 5q)/6 AR = (2p + kq)/2 Note that they are collinear, so their scalar must be different only, while the bracket part should be the same. So, for the bracket part to be the same, k =5 (by comparing)
  6. asd

    Maths, Addmaths and Statistics: Post your doubts here!

    It all needs sick practice! :( :P
  7. asd

    Thanks for the follow dude! :D

    Thanks for the follow dude! :D
  8. asd

    Maths, Addmaths and Statistics: Post your doubts here!

    Oh and if someone is confused between the 2 rotation matrices of 90* clockwise and anti clockwise: Just remember that clockwise is: (o 1) (-1 0) Write that down an the page and turn your page all the way about 180*. The matrix you will see will be for anti-clockwise.
  9. asd

    Maths, Addmaths and Statistics: Post your doubts here!

    Inshallah, although my P1 was worst. But i guess my p2 (which alhumdulillah went awesome) can compensate the marks lost in p1 for A*. I HOPE.
  10. asd

    Maths, Addmaths and Statistics: Post your doubts here!

    And yes, i meant that. And i understand what you meant to say there (the left - right thing) :D
  11. asd

    Maths, Addmaths and Statistics: Post your doubts here!

    Are you confused between the 'left and right' ? :D Read your post again :)
  12. asd

    Maths, Addmaths and Statistics: Post your doubts here!

    I did like 3 times, and the result is that its clock wise. For anti clockwise it should be: (0 -1) (1 0) Try doing this one with a point (2,1) and let me know your results.
  13. asd

    Maths, Addmaths and Statistics: Post your doubts here!

    Simply draw the graph of the original equation. Now you will see the curve has a minimum point, because the coefficient of x^2 is positive. This minimum point (turning point) if exists below x-axis, ie. in -ve y-value, reflect that part above the x-axis, taking y=o as the reference line for...
  14. asd

    Maths, Addmaths and Statistics: Post your doubts here!

    No, that's clock wise :D :O :/
  15. asd

    Maths, Addmaths and Statistics: Post your doubts here!

    Isn't this for anti-clockwise :O
  16. asd

    Maths, Addmaths and Statistics: Post your doubts here!

    Was about to correct the gradient, and then i saw your post. :D
  17. asd

    Maths, Addmaths and Statistics: Post your doubts here!

    Umm, yes. For shear along x-axis it is : (1 k) (0 1) And for shear along y-axis it is: (1 0) (k 1) For stretch, parallel to x-axis (y-axis as invariant) it is: (k 0) (0 1) And for stretch parallel to y-axis(x-axis as invariant) it is: (1 o) (o k) For double stretch: (k1 0) (o k2)...
  18. asd

    Maths, Addmaths and Statistics: Post your doubts here!

    Note, these are rotations about the Origin ONLY.
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