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Quick ! T(A) = Tr(A)

  1. Oct 25, 2011 #1
    Quick plz! T(A) = Tr(A)

    1. The problem statement, all variables and given/known data
    Let T : M22 define as T(A) = Tr(A). Show that T is a linear transformation
    and find the dimension of ker T.


    2. Relevant equations



    3. The attempt at a solution

    what is Tr(A)?
    is it trace(A), or rT(A) , r is a real number?
     
  2. jcsd
  3. Oct 25, 2011 #2

    micromass

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    Re: Quick plz! T(A) = Tr(A)

    It's most likely the trace.
     
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