Qualification > Math
IGCSE MATHS DOUBTS HERE !!!!
~aanchal~:
--- Quote from: Ari Ben Canaan on October 31, 2010, 01:49:23 pm ---You are allowed to use tracing paper.
So Place your tracing paper over the page and trace the grid and triangle.
With your tracing paper still on top of the page place your pencil on the point 4,4.
Rotate your TRACING paper 90 degrees to the right i.e. if the original position of your tracing paper was portrait it should now be landscape.
Make a note of the vertices of the triangle as in its new position.
Draw in the triangle.
--- End quote ---
pls answer
Vin:
--- Quote from: aanchalgadia@hotmail.com on October 31, 2010, 04:14:53 pm ---m/j 2003 p2 q 17
FAST
--- End quote ---
Q.17 a) [Attachment]
b) [Attachment]
c)
Matrix of Object * A = Matrix of Image.
|O| * |A| = |I|
(0 2) * (a b) = (0 6)
(2 2) (c d) (2 6)
You can eliminate the coordinates of the bas as it is common for both - the image as well as the object.
Now, you multiply both the matrix as you normally do. You get:
(0 + 2c 0 + 2d)
(2a+2c 2b+2d)
Therefore,
2c = 0
2a + 2c = 2
2d = 6
2b + 2d = 6
^^Look at the colour combinations. The values corresponding are equal.
Solve the eqns.
2c = 0
c = 0
2a + 2 * 0 = 2
a = 1
2d = 6
d = 3
2b + 2*3 = 6
2b = 0
b = 0
Arrange the values of a b c and d to |A|
So, |A| =
(1 0)
(0 3)
Arthur Bon Zavi:
Maths papers are all over !
Galleria:
loool how do we get an A* in math ?
like if you get an A in paper 2 and 4 both is that A* ?
Arthur Bon Zavi:
--- Quote from: Galleria on November 05, 2010, 09:41:03 am ---loool how do we get an A* in math ?
like if you get an A in paper 2 and 4 both is that A* ?
--- End quote ---
Well, what you said is one criteria !
Another criteria is that that also have many other criteria s with which they grade candidates.
You will come to know when you have earned your results. ;)
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