Linear Transformation T : M22 & Finding Ker T Dimension

  • Thread starter Nope
  • Start date
  • #1

Nope

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0
Quick please! T(A) = Tr(A)

Homework Statement


Let T : M22 define as T(A) = Tr(A). Show that T is a linear transformation
and find the dimension of ker T.


Homework Equations





The Attempt at a Solution



what is Tr(A)?
is it trace(A), or rT(A) , r is a real number?
 
  • #2


It's most likely the trace.
 

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