Use a specific example to prove that the cross product is also not associative. That is, use three specific vectors in 3-sapce to show that a×( b × c ) is not equal to ( a ×b ) × c.

Question

Use a specific example to prove that the cross product is also not associative. That is, use three specific vectors in 3-sapce to show that  a×( b × c )   is not equal to  ( a ×b  ) × c.

Steve · Answer

so, have you picked out three vectors?