![If A and B are two mxxn matrices and O is the null matrix of the type mxxn, then show that A+B=OrArr A=-B and B=-A. If A and B are two mxxn matrices and O is the null matrix of the type mxxn, then show that A+B=OrArr A=-B and B=-A.](https://d10lpgp6xz60nq.cloudfront.net/web-thumb/8486905_web.png)
If A and B are two mxxn matrices and O is the null matrix of the type mxxn, then show that A+B=OrArr A=-B and B=-A.
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![Schematic diagram showing the matrix representations of the Hamiltonian... | Download Scientific Diagram Schematic diagram showing the matrix representations of the Hamiltonian... | Download Scientific Diagram](https://www.researchgate.net/publication/275894117/figure/fig2/AS:669956945502213@1536741591105/Schematic-diagram-showing-the-matrix-representations-of-the-Hamiltonian-H-and-the.png)