HELP cartesian form vector help

[1barcafan]

URGENT HELP! cartesian form vector help!

Homework Statement

given the following vectors, calculate Adotb and BxA. Express your answers in cartesian Form

A= +6X-3Y+4Z B= -3X+1Y-5Z

Homework Equations

The Attempt at a Solution

My teacher went over this in about five minutes making it seem like easiest thing in the world the last class before the test and told us its going to be on the test. I'm stuck now and don't know how to do these types of equations. it would also help if anybody has tips on how i would go about doing a problem like (0,5,6)--->(1,3,8). Test is tomorrow at 9, any help would be greatly appreciated!

 

[Angry Citizen]

I would recommend the following videos:

http://www.khanacademy.org/video/ca...ts-with-unit-vector-notation?playlist=Physics

http://www.khanacademy.org/video/the-dot-product?playlist=Physics

Dot and cross products are pretty simple stuff. You'll do fine. It'll 'click', and then it'll be something you can do in your sleep.

 

[1barcafan]

thank you! i love this guy, but i didn't know he had videos on this.