MultiVariable Calculus: Cross Product Expressionsby Dembadon Tags: calculus 3, cross product, vectors 

#1
Sep711, 10:26 PM

PF Gold
P: 638

I would like to check my answers...
1. The problem statement, all variables and given/known data Given nonzero vectors u, v, and w, use dot product and cross product notation to describe the following.
2. Relevant equations 3. The attempt at a solution




#2
Sep711, 10:47 PM

Sci Advisor
HW Helper
Thanks
P: 25,170

Check 3. What's the length of uv?




#3
Sep711, 11:19 PM

PF Gold
P: 638

Hmm.. I think I see my mistake. It should be [tex]\frac{\vec{u}}{\vec{u}}\vec{v}[/tex]. 



#4
Sep711, 11:27 PM

PF Gold
P: 340

MultiVariable Calculus: Cross Product Expressions 



#5
Sep711, 11:51 PM

PF Gold
P: 638

[itex]\frac{\vec{v}}{\vec{v}}[/itex] is a unit vector in the direction of [itex]\vec{v}[/itex]. I need to multiply the unit vector by [itex]\vec{u}[/itex].
So, [itex]\vec{u}\frac{\vec{v}}{\vec{v}}[/itex]. 



#6
Sep811, 12:52 AM

HW Helper
P: 3,309

looks good



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