Qing Xiaoyu explained it very carefully, and Zou Xuerong quickly learned the lesson and thanked her quietly.
But Shen Yue and Jiang Shiwen still opened their confused and clear eyes, and clearly slapped the words "I don't understand" on their faces.
Shen Yue was simply too lazy to use her brain and just wanted to enjoy the feeling of being noticed when Qing Xiaoyu lectured her, while Jiang Shiwen tried his best to understand but really couldn't understand.
Qing Xiaoyu looked at the time and started to chase people away, "The afternoon class is about to start, aren't you leaving yet?"
Zou Xuerong looked at the time and immediately panicked. Today was her first day of school and she couldn't be late. Fortunately, her classroom was right next to her.
"Then I'll leave first. Yueyue, I'll come find you after school..." After saying that, Zou Xuerong said softly to Qing Xiaoyu, "Thank you too."
Qing Xiaoyu politely replied, "You're welcome."
Jiang Shiwen was very crazy, but he followed Zou Xuerong.
On weekdays, his grades in class are not too bad, below average, and the teacher never criticizes him, and he feels good about himself.
But today, he was taught a question by a child younger than him, and he didn't understand it yet. This was really unbearable!
He doesn’t have to learn, but he can’t learn without understanding!
Jiang Shiwen secretly made up his mind to study hard from today on, so that he could understand at least next time.
The first class in the afternoon was mathematics. As soon as Niu Kaihuai walked into the classroom, he saw Shen Yue who was awake and raised his eyebrows in surprise.
Niu Kaihuai admitted that he had never been a person who would wrong him. He had to know what he wanted to know, so he directly asked Shen Yue, "Why don't you sleep?"
Shen Yue:?
Seeing that Shen Yue didn't answer, Niu Kaihuai thought she didn't hear clearly and asked again, "Why didn't you sleep today?"
Shen Yue was sure that she was asking herself, so she replied, "In order to have a good sleep at night."
After hearing this answer, Niu Kaihuai felt that it was reasonable, but not so reasonable.
Looking at Shen Yue's peaceful face, Niu Kaihuai wrote a question directly on the blackboard and said to Shen Yue, "Shen Yue, come up here and solve this question before class. If you can't solve it in this class, Come on standing."
I want to see if you are really sober today or if you are pretending to be sober.
The question on the blackboard is very concise and proves:
tan1>3/2.
This is a very common proof question, but for ordinary first-year students who have only learned some basic formulas, it is undoubtedly beyond the scope.
Ye Yin only glanced at it and wondered if Shen Yue had offended Lao Niutou, otherwise why would he ask her such a question.
If you use conventional methods to solve this problem, you need to first draw a tangent line to y=tanx at x=π/3.
Then use the f(x) assumption to derive the derivation and prove that it is monotonically decreasing within the definition domain, so that tan1>2/3 can be proved.
There are only five minutes left before class starts. If you don't already fully master the knowledge required to solve this problem and are very familiar with this kind of problem, it will be impossible to solve it in five minutes.
Ye Yin couldn't help but sweat for Shen Yue.
However, if Shen Yue doesn't know this question later, can he take the opportunity to talk to Shen Yue by giving the question?
No, no, no, no, this idea of his is wrong! How could he have such vicious ideas! He actually cursed his classmates for not being able to solve the question!
Although the scope of this question is indeed that only a few people in the entire class can solve it, he can't curse Shen Yue.
Really Namo Amitabha color is emptiness and color...
Ye Yin started to recite sutras, while Shen Yue looked at the question in front of her, but there was only that sentence in her mind. She couldn't figure out the lesson, so she just stood up.
Just stand up.
On.
Standing for a class is too tiring, no, absolutely not.
She was only 12 years old, and she was supposed to think about nothing, do nothing, and quietly accumulate strength for going to jail in the future. How could she waste her time doing something like standing around?
She wants to sit down!!
At this moment, Shen Yue's heart suddenly surged with fighting spirit, which was the determination to never stand in class.
She came to the podium, picked up the chalk, glanced at the topic twice, and began to search for relevant knowledge points in her brain.
Learn now and understand now.
Shen Yue paused with the chalk for about a minute without any movement, and Niu Kaihuai's heart gradually cooled down.
Damn it, this girl really can’t figure it out, right? If she is forced to stand for a whole class, will Brother Shen stew himself?!
It's all because Brother Shen misled him by saying that Shen Yue was a math genius. If Brother Shen hadn't said such a thing that day, wouldn't he have asked such an over-the-top question?!
It doesn't matter, even if Shen Yue can't solve it, he can say that he deliberately used this question to cheer everyone up later, so that it doesn't get in the way.
Niu Kaihuai comforted herself while Shen Yue finally started writing.
From the beginning to the end of the first stroke, it was done in one go, without any pause in between. It only took less than a minute to solve this question.
It says that the answer is not quite right, it should be finished.
It was as if the answer was already in her heart and she just wrote it down.
When Shen Yue finished writing her answers, the school bell had not yet rang.
Niu Kaihuai looked at the answer given by Shen Yue and was surprised that Shen Yue did not use ordinary derivation to solve it, but used the inequality obtained by Taylor's formula to scale it.
If this problem were solved using ordinary methods, it would require writing five or six lines of equations and constantly converting, but now, Shen Yue solved it using only three equations.
Niu Kaihuai stared at Shen Yue's answer, checked it again and again, and finally confirmed that her answer was correct.
Turning his head, he found that Shen Yue was looking at him obediently, but there was clearly a sentence written in his eyes, can I go back and sit down?
Niu Kaihuai always felt as if he had caught something, but this feeling disappeared in a flash. He could not grasp it, so he could only wave his hand and let Shen Yue go back and sit down.
Shen Yue sat back on the stool and breathed a long sigh of relief.
Fortunately, you don't have to stand.
Qing Xiaoyu came over at this time, looked at Shen Yue with a look she didn't use that morning, and exclaimed, "Shen Yue, you can actually use Taylor's formula. I just learned this formula from Ye Yin yesterday."
Shen Yue nodded, she also learned it yesterday.
When I was sleeping, I accidentally heard the neighbor talking about this formula, and I remembered it in my mind. I just thought it might be useful, so I turned this knowledge over and thought about it. Unexpectedly, I actually solved it.
However, even if she couldn't solve this, there was another way to solve it, but it would be slower, and she probably wouldn't be able to finish writing before the bell rang, so she would still have to stand.
Fortunately, I have Taylor's formula in my mind.
Although I don’t know who told her, but... I am grateful for the gift of nature.
Qing Xiaoyu saw Shen Yue clasping her hands aside and moved closer curiously, "What are you doing?"
Shen Yue's movements remained unchanged, "I am thanking nature for its gift."
Qing Xiaoyu:?
Although I don’t quite understand it, it’s so cute.
Qing Xiaoyu poked the back of Shen Yue's hand, "It's class, Lao Niu is watching you."
"I'm too tired, I want to rest."
Qing Xiaoyu and Shen Yue were sitting in the second row, and they were conspiring loudly. Niu Kaihuai's head hurt when he heard it, and he finally couldn't bear it anymore, "Shen Yue, why are you tired after just solving one problem? Come up and solve another one, and you can solve it Just play casually in this class, otherwise you have to listen carefully!"
Niu Kaihuai asked a calculus question, feeling full of confidence.
five minutes later……
"You go ahead... play it low-key and don't tell your brother."
So Shen Yue took out a novel in a very high-profile manner and started reading it.
"One child brings 108 treasures, the CEO is very troubled".