Question: Please show me step by step for the following problems. I have no clue how they derive the answers. Also, please show me how to
Please show me step by step for the following problems. I have no clue how they derive the answers. Also, please show me how to calculate with the matrix as well for both problems. It's not an advance math. So, I hope you will explain in detail for both problems. Thanks a lot in advance for your help!

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