A genius? I just love studying.

Chapter 15 I object

Inequalities can be transformed into areas in a coordinate system. This is basic knowledge in algebra and is also the most commonly used method for finding the maximum value under linear inequality constraints.

Naturally, all the members of the competition team knew this knowledge point, and even most high school students outside the classroom could understand it.

They also know the properties of the center of gravity of a triangle.

1. The ratio of the distance from the centroid to the vertex to the distance from the centroid to the midpoint of the opposite side is 2:1...

5. In a rectangular coordinate system, the coordinates of the center of gravity are the arithmetic mean of the coordinates of the vertices.

These members of the math competition team can even recite it backwards.

But they did not connect these two knowledge points at all, and did not think that expectations could be asked for in this way.

When they see that the question is about the arithmetic mean, that is, the expectation, their first reaction is to use the method of probability and statistics to solve it.

If they are still at the level of responding to each move, then Chen Hui, who can write this solution, has already integrated all the knowledge points. He is no longer restricted to using inequality coordinate systems in linear programming, nor does he think of the center of gravity only when geometry is involved. Instead, he can break down all the knowledge points and integrate them into his own system, allowing them to appear wherever they can be used.

Is it possible for high school students to achieve such mathematical attainments?
The classroom was completely silent, and the students outside the classroom all looked blankly at Tan Junjie, who was the first to raise the question.

Doesn’t it mean that this problem requires knowledge of college mathematics to solve?
How come they seem to understand it?

Although they had never thought that this problem could be solved in this way, they did know the knowledge points that Chen Hui used. After seeing the solution process of this problem, they even thought that this problem was quite simple.

Tan Junjie looked at the solution process on the blackboard, his face turned pale, he fell down on his seat, his lips trembling.

He wrote two pages of draft paper and did a lot of calculations before he found the solution, but Chen Hui only drew a picture, a few lines of process, and simple calculations to get the result.

Sit down!

Seeing Tan Junjie's expression, the classmates also understood that Tan Junjie would probably not be able to solve the problem in the way Chen Hui did.

Tan Junjie is also a well-known figure in school. They all know that he is the number one in the mathematics competition team.

Even he couldn't figure out the solution, but Chen Hui could easily come up with it. Could it be that Chen Hui's math skills were better than Tan Junjie's?
An absurd idea came into the students' minds.

At this moment, a classmate who was usually addicted to online novels suddenly spoke up, "Hey, don't you think this is like one of those monstrous geniuses in immortal cultivation novels? Even if his realm is lowered to the Foundation Establishment stage, he can still cross the border and kill the Golden Core monster?"

"You know what, it's really quite interesting!"

Many of the students read online articles, and someone immediately echoed, "He's a genius, that's right. He has a stronger foundation than you, and is better at applying power (knowledge points) than you. It's normal for him to kill enemies across borders!"

After saying this, they looked at Chen Hui again, and the sense of separation in their hearts became even stronger.

It is normal for a genius to kill enemies across borders, but is Chen Hui really a mathematical genius?

Liang Peixuan looked at the problem-solving process on the blackboard and suddenly realized that he seemed to have underestimated Chen Hui's math level. He originally thought that he would be able to surpass Chen Hui quickly after joining the math competition team.

But now it seems... does he still have a chance?
Liang Peixuan didn't know.

"It doesn't matter. I can't beat him in math, but I'm better than him in other subjects!"

However, he quickly came to his senses and thought about his grades in other subjects, Liang Peixuan regained his confidence.

And he decided that from today on, he would study hard and try to improve his grades!
An Chengzhang came back to his senses at this time, withdrew his gaze from the blackboard, and looked at Zhao Defeng in the classroom with a smile on his face.

Chen Hui's solution was beyond his expectations.

Originally, he was talking about this question to tell the students in the math competition team that learning some college math knowledge is very helpful for participating in competitions. Although college math knowledge cannot be used in the high school math league, you can use it in fill-in-the-blank questions. Some questions and some knowledge points can not only be used, but also very useful!

There is also a general conclusion to this question: the expectation of the minimum value of n random variables that sum to 1 is 1/n^2. He plans to deduce this conclusion after explaining this question, so that everyone can remember it and use it directly when solving problems.

But Chen Hui solved it using only junior high school knowledge!
Clear, elegant, and concise!
An Chengzhang thought of Chen Hui's test paper again, and these words naturally emerged in his mind.

When Zhao Defeng saw An Chengzhang's proud smile, a smile also appeared on his face. He looked at Chen Hui with eyes full of love. A crisis that could have cost him his life was safely overcome, and he even found such a talent for the school. The more he looked at Chen Hui, the more he liked him.

This child is his lucky star!
"Impossible, absolutely impossible!"

A shrill voice sounded from the side. When Zhao Defeng turned to look at Yu Chuhao, the smile on his face had completely disappeared and became as gloomy as water. He hated students who liked to cause trouble.

"Okay, let's all disperse."

Zhao Defeng spoke in a deep voice. Now that the truth had been revealed, he could use force to drive them away.

In other words, in recent years, self-media has been too developed, and many things have been restricted. If it were in earlier years, he would have dispersed the students who came to watch the fun, and then given a few troublemakers a demerit, and announced it to the whole school, which would naturally make everyone obedient.

"It's a conspiracy!"

"It must be a conspiracy!"

Zhao Defeng's face darkened. He didn't expect that even after he had given the order, this student would still dare to act unreasonably.

"Since he can tell him the answer in advance, isn't it normal for him to memorize the solution process?"

"What can he prove by writing down the solution?"

Yu Chuhao knew what he had just done. Although Principal Zhao had no intention of punishing him now, he could tell from the other party's expression that he would definitely suffer the consequences afterwards.

So he had to go all the way. Only if he could prove that Chen Hui was cheating, then what he did today was the right thing. At least, the school would have no reason to punish him.

He firmly believes that he is right!

How could a poor student who usually scores more than 80 points in exams suddenly become a math genius?

The crowd that was about to disperse stopped again.

What Yu Chuhao said seemed to make sense.

Since everyone can agree on the answer in advance, it seems reasonable to memorize the problem-solving process in advance.

Even Tan Junjie, whose face was pale, raised his head and looked at An Chengzhang.

"enough!"

Zhao Defeng shouted angrily, "Everyone, get back to the classroom and attend class."

"That's all for today!"

He believed in An Chengzhang's character, and he believed even more in his own vision. Chen Hui had the temperament that only belongs to a genius.

As long as Chen Hui has real talent and knowledge, that is enough. As for the rest, time will tell!
The crowd, which had become noisy again, suddenly became quiet. Looking at Zhao Defeng who was like an angry lion, they suddenly became silent and dared not say anything more.

“I think what this student said makes sense.”

At this time, a middle-aged man wearing gold-rimmed glasses walked into the classroom and looked directly at Zhao Defeng. "You can memorize the answers in advance, and you can also memorize the problem-solving process."

(End of this chapter)