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Vectors Math Help (solution check)

  1. Feb 28, 2015 #1
    1. The problem statement, all variables and given/known data
    Use three specific vectors in 3 space to show that ⃗ a ×(b⃗ ×c⃗ ) ≠ (a⃗ ×b⃗ )×c⃗

    solution is in pdf...
    2. Relevant equations

    3. The attempt at a solution

    Attached Files:

  2. jcsd
  3. Feb 28, 2015 #2


    Staff: Mentor

    Looks good now.
    For future reference, you can check your answers. a x (b x c) should be perpendicular to both a and a x c. Just calculate the dot product of a and a x (b x c), and of (b x c) and a x (b x c). Each dot product should be zero. Same thing with the other triple product.
  4. Feb 28, 2015 #3
    for sure, thank you so much for taking time out of your day to help me with this problem :)
  5. Feb 28, 2015 #4


    Staff: Mentor

    You're welcome! Most of us helping out here like to do this...
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