Qualification > Math
IGCSE MATHS Doubts
Vin:
--- Quote from: Fastal on May 08, 2010, 01:53:30 pm ---2005 Oct/Nov
Paper 4, IGCSE
2(d)(iii)
I don't understand how you find the invariant line.
--- End quote ---
it might take me a lot of time .. havta solve the whole ques!!
Vin:
--- Quote from: Fastal on May 08, 2010, 01:53:30 pm ---2005 Oct/Nov
Paper 4, IGCSE
2(d)(iii)
I don't understand how you find the invariant line.
--- End quote ---
About invariant lines .. for stretch, the transformation takes place perpendicular to the invariant line .. ;)
ksitna:
how to simplify
x-3= 4
4 x-3
Vin:
--- Quote from: ksitna on May 08, 2010, 04:11:01 pm ---how to simplify
x-3= 4
4 x-3
--- End quote ---
sorry i didnt get the ques ???
@d!_†oX!©:
is it,
(x-3)/4 = 4/(x-3)
then,
=> (x-3)(x-3) = 4*4
=> x2 -6x +9 = 16
=> x2 -6x -7 = 0
=> (x+1)(x-7) = 0
=> x = -1 , x = 7
Navigation
[0] Message Index
[#] Next page
[*] Previous page
Go to full version