The high number part of the proof question is generally a big question, and the score is 10- 12, generally 1 1. Sometimes I give up halfway, and I will give up halfway elsewhere.

I think your headache should be the proof of concepts, such as Lagrange theorem and Green's formula, which appeared in 2008 and 2009. This kind of proof is generally in a high number, and the score is generally 10- 1 1. There are two short questions. The first question is a pure proof of concept, with only 5-6 points.

20 10 exam, there is no pure concept class proof.

Most other high-number proof questions mainly come from extensive accumulation, and there are many questions, so don't worry.

After careful review, I did more questions and naturally broadened my thinking. The test sites that prove the problem are basically clear. Lagrange, definite integral, mean value theorem and series are common test sites, and there are some basic skills, such as shifting terms for difference, ratio method, pinching criterion, and remembering some common inequalities (such as sinx)

I think the proof questions of linear algebra and probability theory are generally clear, and the difficulty is generally smaller than that of high numbers, and I think there is little difference between the proof questions and the calculation questions of these two courses.