3d vectors

[lolita20]

please help with this


We have two vectors u = [5,5,5] and v = [-1,3,-1] ,
1- Compute the cross product u×v. Write the answer as [a,b,c].
2- Compute the cross product v×u. Write the answer as [a,b,c].
3- Compute the area of the parallellogram spanned by u and v

 

[Dr.Peterson]

please help with this


We have two vectors u = [5,5,5] and v = [-1,3,-1] ,
1- Compute the cross product u×v. Write the answer as [a,b,c].
2- Compute the cross product v×u. Write the answer as [a,b,c].
3- Compute the area of the parallellogram spanned by u and v

Please follow our guidelines, so we can see where you need help:

Posting Guidelines (Summary)

Welcome to our tutoring boards! :) This page summarizes the main points from our posting guidelines. As our name implies, we provide math help (primarily to students with homework). We do not generally post immediate answers or step-by-step solutions. We don't do your homework. We prefer to...

www.freemathhelp.com

Presumably you have been taught what a cross product is, so you can at least make an attempt.

 

[lolita20]

I ve learnt and I solved this question but im not completey sure it is correct , here is the answer

 

[Dr.Peterson]

I ve learnt and I solved this question but im not completey sure it is correct , here is the answer

Your v is different than what you said before. Which is correct?

Where are you unsure of your work?

 

[pka]

We have two vectors u = [5,5,5] and v = [-1,3,-1] ,
1- Compute the cross product u×v. Write the answer as [a,b,c].
2- Compute the cross product v×u. Write the answer as [a,b,c].
3- Compute the area of the parallellogram spanned by u and v

Here is a web resource. you can use it to check your work.