Qualification > Math

Help me aditoxic in a really simple math vector thingy

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holtadit:
Q 5)a)ii)  Can u explain how u get the answer. Usually i can do these kind of sums but my brain is numbed from naming isomers... :-[

falafail:
it's OD + DE
OD is d, and DE is -0.5c
so it's d - 0.5c

.. is it? ;D

Saladin:
Ezee

ED is half of OC

so,

it is OD + DE

so it is d - 0.5 c

becasue u r going in the opposite direction!!

@d!_†oX!©:
i am soooo sorry ari.....i didn't notice this question till now....dunno wat's wrong wid my account...it alwas shows no messages on the unread whereas there are messages...
anyways is the answer clear to u now...or should i explain too??

Sumaiya jackie:
I agree... its is  .....  d - 0.5 c
or is it ???

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