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Seema Asked a Question April 15, 2020 5:01 pm
50 pts - CSIR NET
- Mathematical Sciences
73. LetA= (a) be an n xn complex matrix and let A denote the conjugate transpose of A. Which of the following statements are necessarily true'? IfA is invertible, then tr(A'A) *0, i.e., the trace of A'A is nonzero. 2 If tr{A A)*0, then A is invertible. f|tA A)|
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