Xueba: The knowledge I teach, critical hits are returned

The next day, at 7:30 in the morning,

Gu Bai ordered a few meat buns in the cafeteria, bought a bottle of mineral water, and hurried to the lecture hall 301. He had actually promised Professor Luo Shifei to tutor his classmates before the final exams, so Gu Bai naturally kept his word.

Of course, the most important thing is that Gu Bai can finally gain teaching experience again.

It is now close to the end of June, and most of the majors at Linhai University have been suspended, and students are also preparing for the final exams.

From time to time on the road, some students can be met, holding books and walking towards the library.

Gu Bai's direction is different from theirs. His destination is 301 in the teaching building, which is also one of the few classrooms with air conditioning.

After arriving at classroom 301, Gu Bai pushed open the door. At this time, there were already more than a dozen students from the mathematics department class inside.

"Boss, you are here." After seeing Gu Bai, a student in the front row immediately greeted Gu Bai."Hey, idiot," Gu Bai smiled and said,"Forget about calling me Boss, just call me classmate Gu Bai.""

""Okay, boss!"

Gu Bai:"....."

Although it feels good to be called a big boss, Gu Bai still knows his limitations.....The proof of Zhou's conjecture is not enough to make him a big shot in the mathematics world.

Gu Bai is generally unwilling to force himself to reach a height that he has not reached.

But now Gu Bai's status as a top student has been truly established.

From the dozen or so students who have already arrived in the class, as well as the students who are coming in from the door one after another, it can be seen that they are still very recognized and interested in Gu Bai's teaching.

As for how many of them are here to avoid failing the final exam, Gu Bai has no idea.

Coming to the podium in the classroom, turning on the multimedia computer, plugging in the prepared USB, Gu Bai sat down to prepare for the class.

Unlike live teaching, this time Gu Bai is teaching on the spot.

Moreover, the group he faces is also different, they are real college students.

At 8 o'clock, there were already sixty or seventy people sitting in the classroom.

If Gu Bai remembers correctly, there are a total of 86 people in their mathematics department, and Gu Bai did not force the students who did not come.

University emphasizes freedom, and some students do not take learning too seriously.

"Let's start today's teaching."

As he spoke, Gu Bai projected a Advanced Mathematics 2 test paper on his PowerPoint. This was the content that Gu Bai was going to teach today.

His teaching method was still the same. He did the questions on the test paper, and the students listened below. While doing the questions, he explained in detail the knowledge points and mathematical formulas involved in the questions.

"WTF...Is this the start? Just go straight to the test paper?"

"This question doesn't look easy. Will our final exam be harder than this?"

"I saw on the internet that Gu Xueshen is a great teacher and many students in Yangcheng Class 3 were admitted to Peking University and Tsinghua University because of Gu Bai’s lectures. I don’t know if it’s true or not?"

"Who cares if it's true or not? I'm reviewing in the dormitory anyway, so I might as well review with Gu Bai. After all, he's a genius, and he must have his own good study method for these questions."

"That's right. It's such a great honor to hear the prover of Zhou's conjecture give a lecture. Only Gu Bai, who is in the same class as us, has this opportunity."

"......"

In the classroom, the mathematics students saw Gu Bai start to explain the problem and they were talking quietly, their hearts full of anticipation.

Looking at the students in the classroom with a smile, Gu Bai felt a little nervous, but also a little happy.......Finally, you can gain experience points again

【y+p(x)y+q(x)yf(x) has three special solutions, namely ylx, y2e to the power of x, and y3e to the power of 2x. Determine the order of the equation and find its general solution. 】

After hearing Gu Bai say that it was not difficult, all the students in the audience sighed.

Gu Bai smiled and did not care. He explained:"For a univariate function, if the second-order derivative of the dependent variable appears in the equation, we call it a second-order (ordinary) differential equation. Its general form is F(x, yy, y)0"

"The definitions are all there, so it's obvious that this is a second-order equation. As for finding the general solution to a second-order equation, that's even simpler."

"....So the general solution is: x+C1(ex to power - e to power 2x)+C2(x-ex to power)."

Coming to the blackboard, Gu Bai solved the problem in no time.

This kind of second-order equation problem is not difficult for Gu Bai, and he doesn't even need to calculate it at all, he can directly calculate it mentally. However.

The students in the audience can't do it. They look at the final general solution written by Gu Bai on the blackboard with a confused look on their faces, and they are a little doubtful about their lives.

What's going on? It's not ready yet, but it's already solved. (To read the exciting novels, go to Faloo Novel Network!) Finding the general solution of the second-order equation, is it so vulnerable?

"WTF....Is this a quick fix?"

"6666, the top student is worthy of being a top student. He can't even last 1 minute on this kind of question........"

"Hiss, hiss, hiss~ Solved in seconds, really solved in seconds"

"Now I finally know the distance between me and the top students!"

"......"

Immediately, some students started shouting excitedly.

Even though they were mentally prepared and knew that Gu Bai would definitely find it easy to face these questions

,...The ability to solve the problem in seconds after taking a glance at it is incredible.

Awesome, really awesome!

At this moment, the students of the Department of Mathematics at Linhai University finally understood a fact.

The gap between the genius and the ordinary students is not the gap between full marks and 60 points, but a gap that cannot be crossed.

"this...Isn't it enough to have hands?" Seeing the shocked look on the faces of the students, Gu Bai shook his head in confusion. Is this question difficult?

There is no difficulty at all.

"That..."Do you all understand?" Then, Gu Bai asked with concern, after all, this was related to the system's reward.

Some students said they understood, while others did not.

Gu Bai was clear in his mind and had a general understanding of the level of the students in the class.

Next, Gu Bai's explanation began to slow down so that all students could understand.

Gu Bai taught seriously, and all the students listened seriously.

Just like that.

Time passed by minute by minute.....

On the stage, Gu Bai was explaining the problem.

All the mathematics students below the stage were already opening their mouths in surprise.

They looked at Gu Bai on the stage in disbelief, recalling the knowledge points in their minds, with shock on their faces.

"WTF....This is incredible."

"Why can I understand all the questions that Gu Bai explains?"

As the number of questions explained increases, some students have discovered this incredible thing.

"Yes, this is incredible. It is better than what our professor Luo Shifei taught. I can understand every question and I don’t even feel tired."

"Awesome, really awesome"

"Damn, I also understood it in one go, it's amazing"

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