1. The problem statement, all variables and given/known data 1. If |v x w | = 3, then |(v + w) X (v - w)| = 6. 2. Relevant equations definitions for cross product and dot product 3. The attempt at a solution The statement is true, but I am unsure how to test this. Would I break anything I find within the || into v1 v2 or w1 w2 etc? How would that work for the second part?