#代数
May 6, 2023: Studying Maths (8), Algebra (3)（数学の勉強(8)、代数(3)）
For the last two weeks, I had been studying the factorisation of quadratics and the completion of the square. I enjoyed working on them. But they were so difficult that I needed time to follow them an
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April 23, 2023: Studying Maths (7), Algebra (2)（数学の勉強(7)、代数(2)）
I had been studying solving equations and rearranging formulas for the last ten days. It was fun to do them. It looked like I was doing brainteasers. I also noticed that I was using my brain in a diff
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