Vectors question - astar help me !!!!

[holtadit]

Find the attached question paper and diagram.

Here is the questions if you cant see the picture:

CY is paralled to OD
-->        -->
CX = 1/5 CD
-->
OC = c
-->
OD = d  and
-->
CY = nd

[holtadit]

Come on ya'll. HELP ME !!! 

[nid404]

hmmm.....ill try

[@d!_†oX!©]

a)
OC + CD = OD
=> CD = d-c
b)
  CX=1/5 CD
=>CX=1/5(d-c)
c)
OC + CX = OX
=> OX=c + 1/5d - 1/5 c
=>OX=4/5c + 1/5d
d)
CD  + DY = CY
=>DY = nd - d-c

i'll post e part in a few mins

[~~~~shreyapril~~~~]

all right!!
i guess adi has answered them!!

very easy!

[holtadit]

all right!!
i guess adi has answered them!!

very easy!

No still has to do (e) which is the real MOFO !! i.e. im stuck on (e)

[~~~~shreyapril~~~~]

wat is e question???
is it find the value of d or a!!
didnt get it!!

[@d!_†oX!©]

e)
OX=1/5d + 4/5c
DY=nd-d-c = n-1(d) - c
Because they are parallel,
we take the ratio of their components...
(1/5)/(n-1) = (4/5)/1
=> 4n/5 -4/5 = 1/5
=>4n/5 = 1
=>n= 5/4

[~~~~shreyapril~~~~]

great dude!!
good solution!!

[@d!_†oX!©]

No still has to do (e) which is the real MOFO !! i.e. im stuck on (e)

tell me if u still dont get it ari!!

[~~~~shreyapril~~~~]

actually when i read it and tried to understand i did not understand why are you taking ratio???

and ari this question from which year!??
is it add. math!!

[@d!_†oX!©]

now u understand it shrey???
its cuz u have to get the scale factor naa.....
nd i dont think this is add. maths...quiet simple..

[holtadit]

Ill look at the answer in a bit (im doing eco papers right now). This is from my textbook By the way.

+rep to aditoxic

[~~~~shreyapril~~~~]

now u understand it shrey???
its cuz u have to get the scale factor naa.....
nd i dont think this is add. maths...quiet simple..

i also thought abt it for some time!!
but then math paper is also over!!

[holtadit]

Shreycool im doing my IGs in 2010.

Im simply preparing for them NOW.