Trace of a Matrix In Exercises 6366, find the trace of the matrix. The trace of an n n
Chapter 2, Problem 65(choose chapter or problem)
In Exercises 63–66, find the trace of the matrix. The trace of an n n matrix A is the sum of the main diagonal entries. That is, \(Tr(A) = a_{11} + a_{22} + \cdot + a_{nn}\).
\(\left[\begin{array}{rrrr} 1 & 0 & 2 & 1 \\ 0 & 1 & -1 & 2 \\ 4 & 2 & 1 & 0 \\ 0 & 0 & 5 & 1 \end{array}\right] \)
Text Transcription:
Tr(A) = a_11 + a_22 + cdot + a_nn
[_0^4^0^1 _0^2^1^0 _5^1^-1^2 _1^0^2^1]
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