General

Chat

Help on math vectors

So this question is really digging my head in, can't seem to understand it.
The answer to the AE> is also 2a+4c, but how? Shouldn't the answer include the vector 6c or 6a?
[url=http://oi50.tinypic.com/9lfm9f.jpg]Here's what I mean[/url]

February 25, 2013

2 Comments • Newest first

FlyLikeFei

[quote=cb000]AC=6c-6a
AE=(2/3)AC=4c-4a
DE=6a+AE=6a+4c-4a=2a+4c[/quote]
Thanks! Helped me a lot!

Reply February 25, 2013
cb000

AC=6c-6a
AE=(2/3)AC=4c-4a
DE=6a+AE=6a+4c-4a=2a+4c

Reply February 25, 2013