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Cross product question of j ,k

  1. Aug 21, 2009 #1
    http://i26.tinypic.com/27zdaiv.gif

    i know that i should do right hand rule to know the result
    but here the vectors are weird

    ??
     
  2. jcsd
  3. Aug 21, 2009 #2

    Doc Al

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    Staff: Mentor

    Just multiply it out, taking the cross-products of each component.

    j X j = ?
    j X k = ?
    k X k = ?
     
  4. Aug 21, 2009 #3
    ahh i could solve it by definition of cross product
    by determinant
    thanks
     
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