Chapter 6 System Reward: Brain Development

Since this exam is a mathematics exam, Ding Ping, as a mathematics teacher, naturally might as well take a look at how these students are answering the questions.

He just spent about sixty minutes to read all the questions. If we want to evaluate the difficulty, it is probably medium difficulty for senior high school students, not particularly difficult. It can reduce the pressure these students face when they start school.

However, I just don’t know if these top students in the first examination room will make some unnecessary mistakes when doing the questions.

Sometimes, some mistakes make him laugh and laugh, which can be regarded as a kind of fun when invigilating.

When he came to the first row, which was the row of the top six, Ding Ping put his hands behind his back and looked at the student who ranked first in the last exam.

This is a girl. As the first place, she is not too weak in mathematics, but she is not a math master like Lin Xiao or Jiang Jie. Her strengths are mainly in English and Chinese.

Ding Ping looked at it for a while and determined that the girl had made a mistake in one of the choices and one of the fill-in-the-blank questions. They were both the last and the most difficult. However, in this way, she could only get 140 points at most. If the following big questions were If some problems arise, we can only get more than one hundred and thirty.

With a calm expression on his face, Ding Ping stopped paying attention to this girl.

Looking towards the back row, he spotted Jiang Jie sitting in the fourth row.

He naturally knew Jiang Jie, after all, he attended his competition training class.

Jiang Jie also performed well in the training class. Although he is a bit arrogant, his strength is still good, at least a little better than those students in the second year of high school.

So Ding Ping walked behind Jiang Jie and looked at his situation.

"Well, Jiang Jie's writing is quite good and the speed is quite fast. It has only been eighty minutes, and the second question on the ellipse has come. There is also a function question and an elective question. The function question is relatively simple. , I guess it won’t be difficult for him.”

"All the multiple-choice questions and fill-in-the-blank questions should be all correct, and the first few big questions are also all correct. You are well written."

After looking at Jiang Jie's situation through the answer sheet, he nodded with satisfaction. Jiang Jie said before that he wanted to get a provincial first degree. Although Ding Ping had no hope for this, after all, the universities in Xijing invested far more in competition classes than they did. The remote city is much bigger. If you want to get to the top in the competition, without enough talent and energy investment, you will basically not be able to compare with those in Xijing.

Of course, the probability of Jiang Jie winning the second place is quite high, and Ding Ping still believes in it.

Then he stopped looking and went on to see other people.

In this way, he wandered around and reached the last row.

At this time, he was too lazy to look at each person. However, when he walked quickly to the second row, his peripheral vision glanced at the scratch paper of the student in the fifth column, that is, Lin Xiao.

"Huh? What is this student writing?"

He narrowed his eyes, doubtful.

The neat columns of formulas on the scratch paper, as well as some complex functional formulas among them, attracted his attention.

When he saw the first line of words, he was stunned.

"Taylor's mean value theorem? Proof?"

He couldn't help but be confused. Is there such a question on the test paper?

But he soon realized that maybe the student had finished writing the test paper and then tried to prove Taylor's mean theorem?

So he quickly took a look at Lin Xiao's answer sheet and showed an expression that was indeed the case.

I saw that the back of the answer sheet was filled with various formulas, including conic sections and functions, as well as the final optional questions.

He couldn't believe it. It had only been more than eighty minutes, but this student had already finished everything?

He couldn't help but look at Lin Xiao's problem-solving process. The ellipse problem was considered the most difficult one in this paper. After seeing Lin Xiao's problem-solving method, he was even more surprised.

"This method... is OK. I actually thought of converting it into a polar coordinate equation, and then constructing a polar coordinate equation of a circle with the focal length as the diameter, which directly simplified the entire problem."

He couldn't help but admired in his heart. This method was very brilliant. Then he looked at other questions and he praised Lin Xiao's method.

Even if he didn't know how the previous questions were written, he couldn't see the page in front of the answer sheet.

At this time, he also determined that the student probably wrote this proof of Taylor's mean value theorem because he was bored after finishing the problem.

So he looked at Lin Xiao's proof process again, and he felt sincere appreciation in his heart.

"This student has taught himself Taylor's mean value theorem. He must have studied advanced mathematics."

"This is proved by mathematical induction, and the ideas are correct. There is no problem. It seems that the student's knowledge has reached a comprehensive level."

And this is obviously not an easy thing for a high school student.

Lin Xiao's proof is not shocking. Many people have already done it.

But those who have done it are basically undergraduates, but now it is only done by a high school senior.

And you must know that once this proof is completed, it is enough for some undergraduates in the Department of Mathematics to use it as their undergraduate thesis.

"Let me see, what is the name of this student? Well, he's from the first science class, his name is Lin Xiao, eh... I remember there is a student named Lin Xiao in the first science class who can also participate in the league, but he didn't come to participate in the training. It should be this student, right?"

Ding Ping couldn't help but wonder, this student is so good at math, why doesn't he participate in training?

Even understanding the league question types will be helpful for future competitions, right?

And this Lin Xiao's talent should be very good. It took him about ten minutes to write this proof of Taylor's mean theorem.

Doesn't this mean that he just spent more than 70, or even more than 60 minutes to write all the exam questions?

The Jiang Jie just now was not as powerful as him.

With this thought in his mind, he saw Lin Xiao raise his head and write the last two words in a ceremonial manner on the draft paper: Certification completed.

It looks like it has been proven complete.

Ding Ping shook his head and returned to the podium, but he had already written down Lin Xiao's name.

Lin Xiao had just recovered from the immersion state at this time, so he never noticed that the invigilator was behind him. Even if Ding Ping walked by, he didn't pay attention and just regarded it as a teacher passing by normally.

He threw the pen away, picked up the draft paper, and blew on it, with a satisfied expression on his face.

Well, it's basically done.

It's very simple.

He is indeed a genius!

At this time, the system's voice suddenly sounded: "The host has completed the proof of Taylor's mean value theorem after independent thinking. Taking into account the host's ability, the reward: mathematical experience +2, truth point +1, because it is achieved for the first time. Achievements, in order to help the host better explore the truth, reward the host’s brain development by 0.5%.”

The next moment, Lin Xiao suddenly felt his head sink, and then a sense of dizziness came to his mind.