There exsist matrices A and B such that AB is defined and BA is defined, but[img=79x23]1803b6ad36d9535.png[/img].

The transmission parameters and reverse transmission parameters of the two-port network are inverse matrices of each other.

The aggregation process and the analysis of the data are the primary weaknesses of: A: CSF. B: logical application groups. C: enterprise analysis. D: process/data class matrices.

‎If A and B are m × n matrices then have the same rank, then the rank of AB must equal the rank of BA.‌‎‌

The word MATLAB comes from the abbreviations of ( ). A: Mathematica Laboratory B: Matrix Laboratory C: MathWorks Lab D: Matrices Lab

MATLAB一词是( )的缩写。 A: Mathematica Laboratory B: Matrix Laboratory C: MathWorks Lab D: Matrices Lab

The product of two matrices ,AB is defined. Then each column of AB is a linear combination of the columns of B using weights from the corresponding columns of A.

depend on following three-player game, where player 1 chooses rows, player 2 columns and player 3 matrices What’s Nash equilibrium of this game?https://image.zhihuishu.com/zhs/onlineexam/ueditor/201912/986ba5e2a3164a73ae00db6d03e3e868.png

Let A and B be two n × n matrices, they have thesame eigenvalues and n linear independent eigenvalues, then ( ). 未知类型：{'options': ['A is similar to B.', 'A [img=14x23]17de9331bc2f299.png[/img] B, but |A − B| = 0.', 'A = B.', 'A is not necessarily similar to B, but det(A)=det(B).'], 'type': 102}

arXiv是一个预印本系统，在arXiv中检索“A graphical calculus for integration over random diagonal unitary matrices ”，可看到这篇文章的标识码为？ A: arXiv:2007.11745 B: arXiv:2007.11219 C: arXiv:2007.10328 D: arXiv:2007.10244