It should be the focus, but derivative is only the way to solve the problem. Sometimes you can use it or not, but it may be easier to use. Moreover, the derivative is not very difficult. At first, I may feel that I don't know what the teacher is talking about, but after doing more questions, the derivative is quite simple, with only a few types of questions. Just practice more.

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Function is the core content of high school mathematics, so in the college entrance examination over the years, there are not only questions that simply examine the basic knowledge of function, but also questions that design knowledge such as function system. Pay attention to not only the investigation of function thought, but also the application of function. Pay attention to the mastery and application of basic concepts when reviewing.

Derivative is one of the key contents of high school mathematics. When reviewing, students should pay attention to the instrumental role of derivative, stick to this key point, master the application method of derivative in solving function problems, and learn to use mathematical ideas and methods to find laws and solutions.

The following is a summary of the derivative and function knowledge of the college entrance examination.

1. Study the domain of function

Step 2 Access the parsing function

Step 3 check the inverse function

4. Check the parity and monotonicity of the function.

5. Study the function image and its attributes.

6. Explore the geometric meaning of derivatives.

7. Study the monotonicity and extremum of derivative research function.

Find the key points and stick to this knowledge, carefully prepare the application questions and pay attention to the mathematical model of the function.