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Tang Jiafeng has three rows and four columns. What stem?
Tang Jiafeng's Three Lines and Four Columns is a humorous question that Mr. Tang asked a classmate how to find the determinant of three lines and three columns in a live broadcast, questioning the serious attitude of modern students in learning to ask questions.

Tang Jiafeng, male, Han nationality, 1966 was born in Dongtai, Jiangsu, and now lives in Nanjing. Ph.D., Department of Mathematics, Nanjing University, Associate Professor, Nanjing University of Technology. Tang Shen is a doctoral student at NTU and one of the most famous mathematics lecturers in the whole network. His real name is Tang Jiafeng. Of course, you may not know his real name is Tang Jiafeng, or even his nickname "Tang Shen", but if you are a heavy user, you will naturally not be unfamiliar with the sentence "How can you sleep at your age?"

Industry status:

A famous teacher who has been engaged in mathematics teaching and proposition research for 20 consecutive years and can teach advanced mathematics, linear algebra and probability statistics all over the country, and has been a member of the marking group of the postgraduate mathematics examination for more than 10 years. Every year, a large number of students with high scores or even full marks are guided throughout the process. Among them, 20 1 1 created a class with six full marks in mathematics, which is a unique good result in China and is praised as a full-mark coach by students.

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Teaching features:

The lectures are vivid, unique in style and clear in thinking. There are unique methods and opinions on the teaching of various courses, which make the abstraction easy to understand, make boring formulas easy to remember, accurately grasp the key points and difficulties of the exam, and accurately predict the important test sites and methods every year. Teaching advanced mathematics, linear algebra and probability statistics in many large and medium-sized cities in China is welcomed by students.