Thanks for the recommendation - I've always had problems with public speaking. It is very important to control myself because soon I will be speaking at a mathematical conference and I am very worried that I will fail the defense of my project. Thanks to https://plainmath.net/post-secondary/al ... ar-algebra, I quickly prepared myself, because I was able to find free answers to linear algebra questions, with which I had the most problems. I have three more months to prepare - I hope this book will save me.
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