【対数微分法】、媒介変数の2階微分（d/dxの利用方法）

Are you using d/dx correctly? Master differential calculus by mastering it. [Related Video] Differential Calculus:    • 【高校数学数Ⅲ】微分計算   [Instructor Introduction] After graduating from university, I entered the education industry and initially worked at a cram school. However, I found that there was a lot of non-teaching work involved and I felt that I would never be able to compete with more experienced prep school instructors. So, I quit after a year and have been teaching mathematics at major prep schools and medical schools for over 15 years. My students have been accepted into universities such as the University of Tokyo, Kyoto University, Tokyo Institute of Technology, Hitotsubashi University, Osaka University, Nagoya University, Tohoku University, other former imperial universities, Tokyo Medical and Dental University, Yokohama City University School of Medicine, Hokkaido University School of Medicine, and other national medical and dental schools. My students have also been accepted into universities such as Keio University, Waseda University, Sophia University, Tokyo University of Science, MARCH, Jikei University School of Medicine, Juntendo University School of Medicine, Nippon Medical School, and many other private medical schools. He has written answers to past entrance exam questions, taught all Gakken MY GAK mathematics courses, published the National Center Test preparation book, taught the Gakken Prime Course for Medical School preparation, taught the University of Tokyo past exam explanation course, taught the National Center Test preparation course, and provided quick answers to Waseda and Keio entrance exam questions for the Faculty of Science, Policy Studies, and Faculty of Education, among many others. His teaching philosophy for mathematics is to develop the ability to deal with a variety of problems by knowing and understanding their essential meanings. He also believes that it is his responsibility whether students can use what he has taught. If students cannot use what he has taught, it is not the students' ability, but the instructor's! Study and teaching methods for mathematics vary greatly depending on the subject. For example, with probability and sequences, students must accurately interpret the information given in the problem, concretize it, and visually understand it in order to discern the patterns within. To achieve this, he provides accurate instruction on what types of concretization are effective in discerning patterns, and on the areas where mistakes are common when trying to explain patterns. This training develops practical skills. However, the method for studying vectors is completely different. Vectors are a groundbreaking science that allows you to process shapes without looking at them or thinking about them. So how is it possible to solve them this way? Vectors only require four steps. By doing these steps, you can automatically find ratios and angles. That's the science of vectors. Furthermore, when it comes to problems where you need to find maximum or minimum values, there are actually only seven ways to create a solution. By thoroughly practicing using these seven methods, you'll never be unable to solve a maximum or minimum problem. Even within the same subject of mathematics, study methods vary greatly depending on the unit and type of problem. By providing accurate instruction, students' grades can improve incredibly. Before meeting my teacher, I "hated math" or "couldn't do it at all." But after taking my class, countless students have said, "I started to love it" and "my grades improved dramatically." No student who has seriously reviewed my lectures and learned to replicate them has not seen a significant improvement in their grades. [Twitter Account] Go Oikawa   / vcxk11