She was sure that this was a subject she could not afford.

Just now, Yang Yue's remarks about "female competition" came to mind again.

She snorted coldly.

OK!

It seems that in the math class, I was worried about Qing Yun, and in the eyes of caring people, I was considered to be standing out.

She glared at Qing Yun angrily, but unexpectedly their eyes met across Qin Manman's back.

Qing Yun grinned at her, "Give me a look at your math paper, I'm about to fall asleep."

Tang Qianying didn't want to talk to him.

But when she thought of the word 'female competition', she felt a fire in her heart, and she handed over the paper by mistake, "Why is it my paper?"

Qing Yun took the paper and said sincerely, "I really like studying your ideas for solving problems."

Tang Qianying, Qin Manman in the middle and those who were eavesdropping looked confused.

What ideas can Tang Qianying have for solving problems in mathematics?

"Your idea makes me feel like my eyes are shining brightly. It is a way to solve the problem that I couldn't think of."

Tang Qianying:???

Qin Manman:???

Chen Yue:???

The faces of the melon-eaters were collectively filled with question marks.

"Every time I will solve the problem according to your problem-solving ideas, but I can't solve it every time."

Qing Yun's words made everyone unable to hold back their laughter.

Fortunately, it was a classroom. Although the teacher was not in the classroom, they did not dare to be too presumptuous.

Tang Qianying was so angry that her head was about to smoke, and she stared at this hateful little brother in front of her.

Qing Yun shook his head and summed up seriously, "Sister Ying, I have to say that sometimes you are really a genius. Why do you always come up with these ideas that cannot solve the problem?"

Tang Qianying suddenly became furious and started to scratch Qin Manman.

Guan Xiaohe chuckled, "Young maknae, you and Manman are really a match made in heaven! Even if you talk to Qianying, your tone is exactly the same!"

Qin Manman stretched out his arms to hug Tang Qianying with a look of helplessness, turned around and scolded Qing Yun, "Stop saying a few words."

But there was a smile on her lips.

This stinky man is quite wise.

Tang Qianying bared his teeth and claws for a while, and then stopped when Qin Manman stuffed him with another lollipop.

But what no one noticed was that under her long bangs, the corners of her eyes were curled up with a smile.

She found that although such a fuss made her very embarrassed, the secret targeting of her by some of her best friends was eliminated.

The cartoonist blinked twice, feeling a little confused again.

Could it be that this bratty brother did this on purpose?

She glanced at Qing Yun suspiciously, only to see him looking at his test paper carefully with his head buried and touching his chin.

Tang Qianying murmured in her heart, what's so good about this?

Suddenly, an idea flashed in her mind.

Isn't this guy trying to help her improve her math scores?

Tang Qianying turned her head and bit her lip quietly, feeling excited and disappointed at the same time.

What's exciting is that as we all know, Qing Yun not only has a good foundation in mathematics, but also has the reputation of a 'gold medal coach'. He might actually have a way with his own mathematics.

What's disappointing is that, damn, he is such a bad brother!

Unintentional teasing is the most hateful thing!

Scumbag!

But……

If you are careless, what's the point of improving my math!

…

"Tang...Sister Ying, I have already written down the solutions to the two big questions you got wrong. I also gave you a few similar questions to consolidate them. You should not be wrong next time you encounter this kind of question.

"

Under Qin Manman's eye, Qing Yun, who originally wanted to call Tang Qianying "Tangtang" according to her past habit, was forced to change her tune.

Tang Qianying thanked him and took the draft paper he handed over, sitting on his seat and looking at it with interest.

Qingyun's solution is very clever, but she has no interest in mathematics at all.

Otherwise, we would not have been in such a state of neither improvement nor decline.

Whether she works hard or not at this time will not make any difference to the result.

She did not want to leave Xishu, where she was born and raised, to study in a different place.

However, the two local 985 universities, Sichuan University and Chengdu Electrical Engineering University, do not receive high scores in Western Sichuan.

Especially Shu University, at this time, it only has about 30 points on the key line.

This is a level she can never fall below.

"Take a look at these three theorems." Qing Yun handed over a few more pieces of paper.

Tang Qianying took it with a numb expression.

"Cauchy's mean value theorem?"

"Lópida's Law?"

"Taylor formula?"

Tang Qianying looked at the draft paper in her hand in confusion, "Is this the content of advanced mathematics?"

Qing Yun snorted, "Remember this sentence, 'There are no secrets under a high view'."

A pair of comic eyes suddenly narrowed, "What do you mean? Do you want to say that you stand on the clouds and look down on all living beings?"

Qing Yun almost choked to death from her.

Although he also wanted to look down at her, now was definitely not the time.

In the classroom, Qin Manman is still beside him.

There will be many opportunities in the future, not only to look down at her twin tails, but also to put a mirror next to her!

He swallowed and explained helplessly, "To put it simply, if you use advanced mathematics to view the world, there are no secrets in the world."

Qin Manman curled his lips and said, "If you use advanced mathematics to do the college entrance examination mathematics questions, even if you get it right, half of the points will be deducted from the examination paper by Xishu Province."

"Why? Why aren't you giving points for solving the problem? The marking teacher doesn't know how?"

Qin Manman's voice seemed to have been practiced and was very penetrating.

Although the base class classroom for self-study classes is not very quiet, the sound of voices that are not controlled in volume can still be heard in every corner.

Wu Jun, a gold medal winner in the national mathematics competition, raised questions.

Qin Manman knew that this guy was also a recommended student and had not gone through the review mode switch, so it was normal not to know.

But she didn't want to explain.

I don’t even want to explain it to other men.

Qing Yun patted the footprints on his pants and said helplessly, "Lao Wu, let's use your favorite L'Obi Da Law of 'everything can be lost' as an example.

Middle school mathematics does not talk about the definition of ‘limit’.”

Wu Jun was dissatisfied, "Why didn't you mention it? Isn't it used in the derivatives?"

I'm using all the damn stuff, did you tell me?

Yang Yue was also confused, "Isn't the process of approaching the limit? It's written in our textbooks."

As soon as he said this, Wu Jun patted his head and said, "I understand."

"What do you understand?" Yang Yue was confused.

I was really agreeing with your point of view, and then you said this?

Co-authoring makes me look stupid!

Wu Jun smiled at Qing Yun, turned around and explained, "'Limit' is a concept in advanced mathematics differential calculus courses, and in our high school textbooks, "approaching" is considered to be the limit. This is essentially correct.

.

But high schools generally believe that ‘approaching’ means ‘equal to’.”
To be continued...