- #1
robierob12
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Homework Statement
Prove that
u x (v x w) = (u*w)v - (u*v)w
Homework Equations
I've been trying to get this one but keep ending up no where.
I've tried the normal algebraic properties of the cross product but they lead me to a dead end.
What I am trying right now is just proving it in three space. Assigning each vector to a general form like (u1, u2, u3) and busting it out to see if I can get the right side identity.
Is there an easyier way to start this out.
Ideas are much appreciated.
Rob