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September 19, 2014

September 19, 2014

Posted by **Ariza** on Sunday, May 23, 2010 at 5:41pm.

- Vectors -
**Damon**, Sunday, May 23, 2010 at 6:52pmdo cross product (perpendicular to both)

i j k

3 -4 1

2 3 -4

(16-3)i + (2+12)j + (9+8)k

13 i + 14 j + 17 k

divide every coefficient by

sqrt (169 + 196 + 289)

to make it a unit vector

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