# Perform operations on vectors

• April 29th 2008, 10:11 PM
kelsey3
Perform operations on vectors
perform the indicated operations, where u=<-2,4> and v=<-3,-2>
[[v+2u]]
(the brackets[] are supposed to be straight lines indicating magnitude)
• April 29th 2008, 10:15 PM
TheEmptySet
Quote:

Originally Posted by kelsey3
perform the indicated operations, where u=<-2,4> and v=<-3,-2>
[[v+2u]]
(the brackets[] are supposed to be straight lines indicating magnitude)

$|<-2,4>+2<-3,-2>|=|<-2,4>+<-6,-4>|=$
$|<-8,0>|=\sqrt{(-8)^2+(0)^2}=\sqrt{64}=8$