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/sci/ - Science & Math

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>> No.9441811 [View]
File: 217 KB, 792x832, 20180107_195349.png [View same] [iqdb] [saucenao] [google]
9441811

How to solve this?

I've done (x'i+1x)^-1 and (x'i+1)y

But stuck on how to get the required form

>> No.9421177 [View]
File: 217 KB, 792x832, 20180107_195349.png [View same] [iqdb] [saucenao] [google]
9421177

How to solve and/or interpret this?

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