Vectors and magnitude

1. Sep 18, 2006

mathzing

hello, can someone please tell me if this is correct? no it is not for my homework.

place vector symbols above all letters.

|m-n| = |n|-|m|

place vector symbols about the letters to specify they are vectors

so are they the same?

2. Sep 18, 2006

Staff: Mentor

If I understand the question, then no they are not the same. Can you tell me why?

3. Sep 18, 2006

mathman

For example, look at m=n and m=-n.