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Homework Help: Need help! A problem with Cohen Tannoudji's book

  1. Oct 15, 2011 #1
    1. The problem statement, all variables and given/known data

    This problem is Problem 6 in Chapter X, Cohen-Tannoudji's quantum mechanics. I can solve the first 3 problems, but not the rest two. I need some hints! Thank you very much!
  2. jcsd
  3. Oct 16, 2011 #2
    Not everyone has access to this textbook. Could you write out the questions please?
  4. Oct 16, 2011 #3
    Thank you, Clever-Name and everybody. I suddenly find the solution. Thank you!
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