There is a voting column hanging in the upper right corner of the live broadcast room, asking everyone to check their age range, which Yan Fuguang specially asked people to add.

The voting results accounted for more than 60% of high school students and college students, so there is a lot of audience in this high math class!

"Alright, back to business." Yan Fuguang put down the tablet and no longer paid attention to the message.

[Is it about to start, come on, come on, I love to learn, learning makes me happy!] 】

[Can I also be admitted to Hudan after studying?] 】

Most of the audience was still laughing, and they didn't take words like "travel" to heart at all, even if they knew that Yan Fuguang was a student of Hudan, they thought that she would talk about high school life and her longing for college at most.

But who knows, Yan Fuguang opened his mouth......

"How many people are studying advanced math? Or are you about to learn advanced math? ”

The barrage was confusing for a while, but there are not many majors in college that want to study high mathematics, and quite a few people still hit "yes".

"Do you think there is any difficulty, I'll take a barrage and talk about it."

Now the audience is even more confused, why did they start talking about high mathematics directly, is the change so sudden?

So someone tentatively asked a question of the number of points.

In the lively elementary school addition and subtraction, Yan Fuguang saw this at a glance.

"If f(x) is a differentiable function of [a,+∞) and satisfies |f′(x)|≤N|f(x)|,f(a)=0.where N is a constant greater than 0, prove: f(x)=0."

Yan Fuguang nodded and said, "It's okay, then this one." ”

As she spoke, she turned around and wrote down the question on the whiteboard, without even thinking, and directly began to explain the proof process, and even gave three solutions intimately.

The one who asked the question didn't know if he understood it, but there were really people who studied advanced mathematics in the barrage who listened carefully, and then typed frantically and shouted in shock.

[Don't blow it, it's not black, it's very good! ] 】

[It's a good point, especially the third solution, which is really ingenious. 】

[Are there so many big guys? ] Liberal arts students tremble]

[I'm a high school student who doesn't even deserve to tremble, it's out of place]

[Junior high school students don't deserve to watch, I'm a little panicked]

[Junior high school students don't want to go to study? What to watch live]

[I don't understand a word, but I don't know how to do it]

Supposedly, another 40% of the audience either didn't understand at all, or their student days were long over, but the number of online viewers miraculously did not decrease, but on the contrary, there was a slight increase.

It is mainly students all over the Internet who began to spontaneously promote it in the class group.

"The super beauty who became popular overnight turned out to be a high-achieving student in Hudan and also started a live broadcast to talk about high math questions", such a long title is the focus of every word, which is simply eye-catching.

Those who are far away from the campus are reluctant to leave even if they don't understand it, after all, this kind of scene is too rare to see, isn't this better than those howling live broadcasts of demons dancing wildly?

[If my math teacher is like Yan Fuguang, I can't fail math!] 】

[Is there a possibility that you just can't learn stupidly]

[If there was such a teacher, I should be in Wudaokou Vocational and Technical College now, not Lanxiang Technical School]

[There is a sinful impulse to dissect Yan Fuguang's head to study the structure, isn't it that he is not a freshman yet, why is he more familiar than me! ] 】

[You're not alone! 】

[Just said that Yan Fuguang understands high mathematics and eats Xiang upside down, the room number in the live broadcast room said, send you ten planes, you eat me hard! ] 】

For a while, there were people who said anything, and the barrage drifted faster and faster.

[No one really believes it, just find a question to make a debut, Yan Fuguang reads the answer, this can also be blown? ] 】

[Xingchen is still powerful, first he used means to get endorsements, and now he plays tricks to play with the audience, is the brokerage company's method of praising people so outrageous? 】

[Talk about mathematics today, do you want to talk about physics next time, what kind of artist are you so awesome, you should have a place for the Nobel Prize! ] 】

Yan Fuguang, who did not take the usual path, provided new ideas for Kuroko.

However, the number of sunspots is not as good as the silent majority, not to mention that no one wants to be silent now, all of them are exporting.

[In other words, let A and B be m∗n matrices, if there is n∗n matrix P,Q makes AP=B, BQ=A, prove: (1) There is n∗n matrix K so that P+(PQ−En)K is an invertible matrix; (2) There is n∗n matrix C such that AC=B.]

[A,B∈Rn∗n are known, and rank(ABA)=rankB. is satisfied.

The topics are one after another, maybe most people just want to join in the fun, but the enthusiasm of the audience is still far beyond Mo Yun's imagination.

Originally, I thought that it would be a blessing that this kind of sword went sideways and that the theme did not overturn, but I didn't expect Yan Fuguang to be able to answer any question.

Later, the audience didn't want to leave even if they listened to the book of heaven, and many people hung in the live broadcast room to see if Yan Fuguang would be stumped.

As a result, the sunspots couldn't hold on, no matter how dark they were, Yan Fuguang could slap his face on the spot, or the kind of forehand and backhand education.

In the end, the two-hour live broadcast dragged on until two and a half hours.

"Alright, that's all for today, see you next month." Yan Fuguang waved at the camera.

[Don't, let's talk about it again~]

[How many cards are there!] Don't leave us! 】

[It's okay if my sister is tired and doesn't speak, just turn the camera on, I can't bear your beautiful face]

As soon as Yan Fuguang said that he was leaving, the barrage was all coquettish.

"It's useless to be coquettish, I'm hard-hearted." Yan Fuguang said with a smile.

[It's not hard-hearted, obviously for us to broadcast live for half an hour more, my mother doesn't allow you to say that about yourself! ] 】

[Yan Fuguang, mom loves you! ] 】

[Yue, male mother, hurry up! 】

"Okay, I'm really leaving, I'll be notified in advance next live broadcast, goodbye everyone!" Yan Fuguang waved goodbye again.

The picture in the live broadcast room was abruptly interrupted, but the heat on Weibo was in full swing.

Yan Fuguang's previous hot searches were during "Survival on a Desert Island", and later Lightning's official spokesperson also exploded once, but this time the entry of #Yan Fuguang Hudan# directly landed on the first list.

The top few posts are all screen recordings in the live broadcast room, and someone made a wayfinding post to collect all the questions Yan Fuguang talked about.

Weibo's room to play is much larger than a barrage.

[I thought Yan Fuguang's performance on the desert island was already the limit, but I didn't expect it to be just an appetizer. 】

[Yan Fuguang is really a freshman in Hudan? 】

[So people participate in a variety show to relax after the college entrance examination, but they become popular without paying attention, can you believe this?!] 】

[I've seen too many pseudo-academic tyrants in the entertainment industry, and now it's finally true! ] 】

[I'm a senior in the Department of Mathematics, and to be honest, there are a few questions that are already in the category of graduate school entrance examinations, and it's hard to imagine that she is just a freshman who hasn't been reported yet. 】

[Upstairs serious? 】

[I'm from Hudan, just now our class group has gone crazy, and the school forum is all Yan Fuguang's post, I can see the real person in September, I'm so excited! 】

[Okay, okay, I can see that you're excited, don't show off here, okay, be careful of being struck by lightning]

[This kind of top beauty + top student must have been a figure of the year in high school, why didn't his classmates come out to claim it? ] 】

[Heavy reward, have any former classmates come out to talk about it, I really want to know what Yan Fuguang was like in high school! ] 】