Let A and B be twa square matrices of order n over a fiéid F and dEF Then (I) tr (AA)=d tr A; Ir (A+B)=ir A+tr B; (3) tr (AB)=tr (BA). (2)

Elementary Linear Algebra (MindTap Course List)
8th Edition
ISBN:9781305658004
Author:Ron Larson
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Chapter3: Determinants
Section3.3: Properties Of Determinants
Problem 57E: Let A and B be square matrices of order 4 such that |A|=5 and |B|=3.Find a |A2|, b |B2|, c |A3|, and...
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trace (tr)
Let A and B be two square matrices of order n
over a fiéid F and dEF Then
(I)
fr (AA)=À Ir A;
{2)
Ir (A+B)=ir A+tr B;
(3)
tr (AB)=1r (BA).
Transcribed Image Text:Let A and B be two square matrices of order n over a fiéid F and dEF Then (I) fr (AA)=À Ir A; {2) Ir (A+B)=ir A+tr B; (3) tr (AB)=1r (BA).
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