Super Xueba: Start With A Low Control Score!

Chapter 370 You don’t know how to do such a simple question. Could it be a fake Hua Qingsheng?

What?

There is actually a big saying that in such a similar scene, the good-looking girls who appear are almost the heroines?

Ah, how is it possible?

Jiang Nan has a sweetheart, alright!

Talk nonsense.

but……

Some big guesses are good, this moment of pretense has already appeared, how can it stand still?

In other words…

Jiang Nan hasn’t acted for a long time.

The skills are unfamiliar!

The reputation of being a god has gradually faded away.

[Sp: The above is a certain part of the reader’s own conjecture, and it is definitely not Jiang Nan’s inner activity ヾ(：3ﾉｼヾ)ﾉﾉﾉﾉﾉｼヾ)ﾉﾉﾉｼヾ. 】

Actually…

The moment I saw the girl.

Jiang Nan didn’t like it and was shocked, and almost jumped up.

certainly.

It is not because he knows the other person, but purely an instinctive reaction, subconsciously thinking that he has been recognized.

“No, right?”

“I just came to Huaqing the second day, and I was recognized by others? Wouldn’t it be that I won’t have peace in the future?”

“The scene that won’t be in Jiangcheng should be repeated again! Wherever you go are the little fans?”

“I don’t want to be like this!”

“I really just want to make progress with peace of mind.”

“Can you let me study well?”

In an instant.

Millions of thoughts flashed in Jiang Nan’s mind. The thoughts flowed so fast that he didn’t even realize it.

“Impossible, it should be impossible.”

“It should be impossible for her to recognize me.”

“After all, this is Yanjing, Huaqing University, not Jiangcheng, or Third Middle School. How would she know me?”

“What’s more, when I arrived in Huaqing, I greeted Tang Xiaohu and Yi Qiu, and asked them to keep it secret for the time being.”

“Moreover, I also wear a super peaked cap and a flat mirror. The combination of the two can barely reduce my face and temperament. If I am not familiar with me, I should not be able to recognize it.”

“Well, she shouldn’t recognize me!”

Next second.

Jiang Nan reacted and made a decision in his heart. The other party did not know him, so he came to strike up a conversation. Maybe he really just wanted to ask questions.

after all……

This is the library of Huaqing University.

Can still study here during the summer vacation.

It’s definitely the kind of super schoolmaster who loves learning very much. It’s normal to ask if you don’t understand.

Thinking of this, Jiang Nan held the super flat mirror on the bridge of his nose, nodded slightly and said: “Yes, you can ask!”

Emphasize one sentence.

He didn’t agree to the other party because of his good looks. After all, he was not that kind of party (ง˙o˙)ว.

My girlfriend is the more beautiful the better.

Besides.

How does his appearance matter?

And the reason why he agreed is purely because the other party did not recognize him, and wanted to pass the other party’s questions to test the results of his study on this day.

I just arrived at university, but after reading a math book for a day, he really didn’t know what his specific math level was.

And the other party is Huaqing’s Xueba, this question should be a bit difficult, right?

I can definitely detect my own level.

“Thank you classmate!”

The little girl with pony tails smiled sweetly at Jiang Nan, whispered a thank you, and handed both the pen and paper to Jiang Nan, and pointed out: “This, this, and this, just these three. Question, I haven’t figured it out for a long time!”

“Um!”

Jiang Nan nodded and looked at the paper.

I saw…

The first question: Given curve C: x^2+2y^2-z=6, 4x+2y+z=30, find the maximum value of the distance from the point on C to the xoy coordinate plane.

Jiang Nan: “(￣_, ￣)???”

Glancing at the girl next to him, his face became slightly stiff.

It’s not because he couldn’t solve this problem.

Rather, I wonder if this girl is teasing herself.

As a Huaqing student at Dongyun’s top university, is this the difficulty of the question? ? ? ?

Isn’t it funny? ?

Or is it because she is too handsome, so this girl just found a reason to strike up a conversation? ?

It is most likely the latter.

But Jiang Nan observed it.

Judging from his micro-expression analysis skills, it seems that this girl is not here to strike up a conversation.

so……

“This question is very simple, it’s a Lagrangian function problem. I happened to see it in the book this morning.”

Jiang Nan took the pen and papers, started writing again, and explained again: “Suppose the Lagrangian function L(x,y,z,γ,μ)=z^2+γ(x^2+2y^2- z-6)+μ(4x+2y+z-30).

L’x=2xγ+4u=0.

L’y=4yγ+2u=0.

L’z=2z－γ+u=0.

x^2+2y^2=6.

4x+2y+z=30.

Solve the stagnation point: (4, 1, 12), (-8, -2, 66).

The maximum distance from the point (-8, -2, 66) on C to the xoy surface is 66. ”

Less than half a minute.

Jiang Nan finished the topic and finished writing, but Lin Qingya next to it was just staring blankly.

“this……”

“This this……”

“Am I dazzled?”

“Or is there an ear problem?”

“I have been thinking about this question for a long time and I haven’t had a clue! But he didn’t even think about it, so he got it straight?”

“Half a minute, only half a minute! Are these mathematics boys so fast?”

Lin Qingya stared at the paper blankly, then looked at Jiang Nan in disbelief, shocked to the extreme.

but……

This is not the end.

It was just the beginning of her surprise.

Just because…

After Jiang Nan solved one question, he didn’t care whether Lin Qingya understood or comprehend it thoroughly, and then started the second question again.

“The bounded area D is x^2+y^2=1 and the straight line y=x, and the x-axis is in the first quadrant ffDe^(x+y)^2(x^2-y^2)dxdy.”

This question…

It’s slightly interesting.

But it’s only a bit interesting.

Is it difficult?

It’s not difficult at all!

“Solution: omit 52 steps… The final answer is: 1/8e^2-1/4e+1/8.”

Um!

It took nearly a minute.

Then comes the third question.

“Let n be a positive integer, y=yn(x) is the differential equation xy’-(n+1)y=0 satisfying the condition y.

(1) Find yn(x).

(2) Find the convergence range and sum function of the series [1, +∞] yn(x). ”

I can tell.

This girl is not deeply involved in functions.

otherwise.

Nor will three consecutive questions be related to functions.

But in fact.

Just like Jiang Nan, read all the books on functions, and don’t do these questions too easily.

“Solution: (1) yn(x)=1/n(n+1)*x^(x+1); (2) The convergence domain is [-1,1], and the level sum function S(x)=( 1-x) ln(1-x)+x, x belongs to [-1, 1), or 1, x=1.”

Um!

Three questions.

Add up to no more than three minutes.

Jiang Nan finished it all, and then handed the pen and paper to Lin Qingya, “The answer is like this, it’s very simple. Just read a few more books about functions.”

“But you won’t?”

“Could it be that you, like me, have not yet entered university, but came to the Huaqing Library for self-study in advance?”

Jiang Nan was very suspicious.

This sudden girl is not a student of Huaqing, otherwise the mathematics level would not be so good.

I can figure it out after only reading the book for a day. If it is really a student of Huaqing, I must be able to figure it out easily!

But Lin Qingya didn’t know how.

That eliminates all the impossible, and even if the remaining is impossible, it is the truth.

That is……

Lin Qingya is a fake Hua Qing student.

However……

Hear what Jiang Nan said.

Lin Qingya, who was still in shock at the beginning, turned red with a “huh” on her pretty face, and almost subconsciously retorted: “I…I’m different, I’m a graduate student…”

The words stopped abruptly before they were finished.

Just because…

Lin Qingya suddenly realized a problem, what did Jiang Nan just say? Jiang Nan said that he has not yet entered the university, but just came to the library for self-study in advance?

this……

How can this be?

Although I am not a mathematics major, and I have just finished my junior year and are about to enter my senior year, most of the advanced mathematics knowledge I have learned is returned to the math teacher.

But it doesn’t mean she has no eyesight!

She can be sure.

The three questions I asked are still very difficult.

After all, the paper she took was the real test for the postgraduate entrance examination a few years ago, and it was the final one.