## Zenmo one year ago Find a unit vector in the direction of the given vector. Verify that the result has a magnitude of 1. V=<-2,2>

1. anonymous

to get unit vector, divide each component by magnitude $u = \frac{v}{|v|}$

2. Zenmo

|dw:1433974111086:dw|

3. anonymous

yeah you got it :) you can reduce a little more though

4. Zenmo

how do I reduce it to $(-\sqrt{2}/2,\sqrt{2}/2)$ since that is the answer?

5. anonymous

$\sqrt{8} = \sqrt{4} \sqrt{2} = 2 \sqrt{2}$

6. Zenmo

ok thanks! got it now :)