Thread: Vectors again

v=-3i+j, w=4i-2j

Find:

1) 4v-3w does this equal -24i-2j

2) ||V+W|| does this equal [tex] \sqrt{i^2-j^2} [ /math] I have an error if I take out the space between [ / that I do not know how to fix.

3) How can I find the angle between v and w?

Originally Posted by IDontunderstand

v=-3i+j, w=4i-2j

Find:

1) 4v-3w does this equal -24i-2j

yes

2) ||V+W|| does this equal [tex] \sqrt{i^2-j^2} [ /math] I have an error if I take out the space between [ / that I do not know how to fix.



3) How can I find the angle between v and w?

btw, [tex] tags don't work ... use [tex] tags

I figured it out thanks