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Need help with 2 questions

  1. May 8, 2013 #1
    I am so confused with these two questions. Can anyone help me out?

    1) Please find [Q((√7 , √5) : Q] by finding f(x) such that Q (√7 , √5) ≅ Q[x]/(f(x)),

    2) Prove that φ(4root√3) = ± 4root√3, Given that φ ∈ Gal(Q(4root√3)|Q)
     
  2. jcsd
  3. May 8, 2013 #2

    Simon Bridge

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    Welcome to PF;
    What is your understanding of what these questions are asking?
    How have you tried to solve them so far?
    Where does your confusion lie?
     
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