Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Proving a relation between cross and dot products

  1. Oct 3, 2012 #1
    Another vector identity I have been trying to prove. My textbook lists this identity in "properties of cross products" without proving it. I have been trying to prove it, withou much luck, so some insight is appreciated.

    [tex] u \times (v \times w) = (u \cdot w)v - (u \cdot v)w [/tex]

    Thanks!

    BiP
     
  2. jcsd
  3. Oct 4, 2012 #2

    micromass

    User Avatar
    Staff Emeritus
    Science Advisor
    Education Advisor
    2016 Award

    This belongs in the homework section.
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook




Similar Discussions: Proving a relation between cross and dot products
Loading...