- #1
Bipolarity
- 776
- 2
Homework Statement
Show that [itex] (u \times (v+w))\cdot r = (u \cdot w)(v \cdot r) - (u \cdot v)(w \cdot r) [/itex]
Homework Equations
The Attempt at a Solution
So far I have been able to simplify the LHS to:
[itex] (r \times u)\cdot v + (r \times u) \cdot w [/itex] but don't know how to proceed from there.
In fact, I don't know if this problem is even solvable using only vector identities, i.e. without having to prove using components.
All help is appreciated!
BiP