"when does this calculation come up in physics, and with what slight modification?"(adsbygoogle = window.adsbygoogle || []).push({});

a' = [b x c]/[a*[(b x c)]], b' = [c x a]/[a*[(b x c)]], c' = [a x b]/a*[(b x c)]]

a* (b x c) does not equal 0 (* is dot product and (x) is cross product)

2. Relevant equations

Show that:

x'*y = delta_xy, where x, y E{a,b,c}

a' * (b'xc') = [1]/a*[(b x c)]]

a =[b' x c']/a'*[(b' x c')]]

3. I was able to show those relationships using Levi Civita but have no idea where I would use this

1. The problem statement, all variables and given/known data

2. Relevant equations

3. The attempt at a solution

**Physics Forums | Science Articles, Homework Help, Discussion**

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Homework Help: Math Methods Question about triple product

**Physics Forums | Science Articles, Homework Help, Discussion**