The question just says "Calculate" followed by these:(adsbygoogle = window.adsbygoogle || []).push({});

a)

|a+b -b|

| b a-b|

b)

| 2 4-n|

| 1 2 |

c)

|0 a 0|

|0 0 b|

|c 0 0|

In the question the lines at the edges are joined up, but not brackets. I don't know what to calculate or how to do it. A worked example would be helpful!

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# Homework Help: Matrix calculation help

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