Shanghai senior high school mathematics textbooks don't learn inverse trigonometric function, so why should we learn it in the college entrance examination?
The completeness of mathematical knowledge. Inverse trigonometric function is the inverse operation of trigonometric function, which is closely related to trigonometric function. In the mathematical system, learning inverse trigonometric function can make students understand trigonometric function more comprehensively and deeply. As a comprehensive survey of students' mathematical knowledge, the college entrance examination needs to examine students' comprehensive mastery of mathematical knowledge.