Finding the range of the trace

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SUMMARY

The discussion focuses on determining the range of the linear transformation T(A) = tr(A), where tr(A) represents the trace of matrix A, defined as the sum of its diagonal elements. The conclusion is that the range R(T) encompasses all real numbers, denoted as R^1. Consequently, the basis for this range is established as the single element {1}, confirming that the transformation can yield any real number.

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Homework Statement


Find the basis for the range of the following transformation: T(A)=tr(A)


Homework Equations


tr(A)=a(1,1)+a(2,2)+...+a(n,n) {not a multiple of but just subscripts of the entries of the diagonal elements}


The Attempt at a Solution



Since the elements can be any real number, the range R(T)= all real numbers on the number line(i.e R^1). So I guess the basis is just 1? Is this right?
 
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