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值域在中学教材中占有一定的地位,在解答这类问题时,往往会出现各种各样的错误.本文从实例出发,剖析造成各种错误的原因,旨在对中学生朋友们正确、合理解答这类问题有所帮助.
The value domain occupies a certain position in the middle school textbooks, and often will encounter various mistakes in answering this kind of question.This article starts from an example and analyzes the causes of various errors, aiming to make the middle school students’ friends correct and reasonable To answer such questions helpful.