Mathematics has always been the subject that gives students the most headaches. Or rather, it is the subject that students around the world find particularly troubling. 1234567890 are just simple numbers, but when these numbers combine with some seemingly simple formulas and theorems as well as many practical problems, they give rise to countless application questions that make one feel like hanging oneself.
Permutations and combinations, trigonometric functions, geometric applications, and various equations and functions. Who knows why there is such a torturous subject as mathematics in the world? The former Lin Feng used to feel numb with a headache at the sight of numbers and application questions, and would feel dizzy at the sight of those function symbols and various geometric figures.
