let u = [1,2,-1,-2], v=[-2,0,4,3], w=[1,6,1,-3] calculate: 1. ||u+v|| 2. ||u|| + ||v||
Last edited by mr fantastic; Jan 8th 2011 at 08:03 PM. Reason: Added the correct notation, re-titled.
Follow Math Help Forum on Facebook and Google+
First add the two vectors and then take the norm.
Last edited by mr fantastic; Jan 8th 2011 at 08:03 PM.
if I add, I get [-1, 2, 3, 1] But how do I take a norm?
It depends on which norm you are looking for but I would assume $\displaystyle \sqrt{(-1)^2+2^2+3^3+1^2}=\sqrt{1+4+9+1}=\sqrt{15}$
then for the second question, the ans would then be sqrt. 10 + sqrt. 29 right?
yup
thanks a lot!
View Tag Cloud