Chapter 24 Galloping Horse
Matching method, substitution method, undetermined coefficient method, construction equation elimination method...
Just by glancing at the function question, Wu Bin would have several problem-solving ideas pop up in his mind, and he would instantly find the most suitable one. This was an experience he had never had before!
'Cool! ! ’
This smooth feeling purified Wu Bin's body and mind.
In terms of functions, Wu Bin has already laid a very solid foundation. Now that his ideas have been expanded, it is natural for tall buildings to rise from the ground.
Change to the sine theorem, multiply the denominator, and then substitute it into the induction formula...
Write it as an exponential function, separate xy, and then expand the two exponential functions binomially...
First write the expansion of sin(nx), find the rules, and analytically extend n from natural numbers to real numbers...
…
At this moment, on the grassland of mathematics, Wu Bin is riding high!
"Gulu..." "Guluulu..."
Wu Bin, who was galloping on horseback, was about to conquer the next piece of grassland when his stomach growled. Then he remembered that he hadn't eaten dinner yet...
In the quiet classroom, Wu Bin's stomach growled so loudly that it made several people around him chuckle.
But Wu Bin didn't have any food reserves at this time, so he had to look at the time and found that it was already the third period of self-study, so he would go back to the dormitory any longer.
Unfortunately, Wu Bin could bear it mentally, but his stomach kept protesting through his intestines, and bursts of "gurgling" sounds kept coming out.
However, Wu Bin didn't care anymore, pulled up the reins, and prepared to continue galloping again.
But just when Wu Bin raised his riding crop, a box of 3+2 biscuits suddenly appeared in front of him.
Wu Bin, who was stunned, turned around and saw that the biscuits were handed over by Pei Jiamin.
"Give it to me...?" Wu Bin pointed at himself and couldn't believe it.
The surrounding students also made cheers like "Oh~~~". After all, in the high school class, Pei Jiamin's move was quite bold.
"Otherwise, who will give it to me? It's so noisy that I can't study. Eat it quickly! Remember to return a box to me tomorrow."
"Oh, thank you."
After thanking him, Wu Bin took the biscuit.
‘This woman really never misses an opportunity to humiliate me. Forget it, I won’t argue with her for the sake of the cookies. ’
When the students around him heard what Pei Jiamin said, they lost interest in reading gossip. After all, Wu Bin's stomach growling was really annoying, and it affected Pei Xueba's mood next door.
Teacher Qin, who was on duty at the moment, was not in Class 3, and Wu Bin ate more openly, eating several pieces in two bites.
‘This chocolate-vanilla flavor is surprisingly delicious. ’
Biscuits like 3+2, which come in a pack of 3 yuan and 5 yuan, are a luxury item for most students. After all, most people think that if they have this kind of money, they might as well buy several packs of spicy strips and feast on them! Well, this includes Wu Bin.
After filling his stomach, Wu Bin continued to gallop, while Pei Jiamin, who had been secretly observing from the side, also sighed.
In fact, she struggled mentally for a long time whether to hand over the packet of biscuits. After all, she knew that doing so would be very eye-catching, but thinking about Wu Bin staying in the classroom so late and being called away by Teacher Cai, it was very likely that after dinner Didn't eat any.
"Next time! I will prove to you in the next exam that my scores in all subjects will be as good as physics."
At this time, what Wu Bin said suddenly flashed through Pei Jiamin's mind. When she thought that he might be working harder to prove to herself, she suddenly felt a little happy.
So with a little courage in her heart, Pei Jiamin handed the biscuits out in one go.
Of course, she never thought about saying the next sentence, she just blurted it out out of embarrassment after being coaxed by her classmates.
'I hope he didn't misunderstand...'
Pei Jiamin took another peek at Wu Bin and found that he was chewing on a book and biscuits, as if he was eating the food.
After the matter was resolved, Pei Jiamin continued to work on her own questions, but the corner of her mouth raised a slight arc.
…
After completing two big questions on trigonometric functions, Wu Bin was sure that his ability to read questions had greatly improved, and he could quickly find out exactly what the questions asked him to ask for. This should be the help brought by abstract thinking. It can be said to be very obvious.
However, Wu Bin has not become bloated. Although his ability to solve math problems has improved a lot, he has not yet reached the point where he is 100% sure that it is correct as long as he solves the physics problems. This shows that he still needs to work harder.
'But if you give me a little more time, I should be able to figure it all out,'
Wu Bin has this confidence not only because he is now more sensitive to functions, but also because the note-taking method Liu Yushan taught him is very easy to use. With the addition of the two items, it is only a matter of time before he completely masters high school mathematics.
…
Three days of such exciting learning passed quickly. On this day, Cai Guoping was standing on the podium and excitedly explaining a question that 80% of the class got wrong.
"So how many times have I stressed to you! If you can conceptually understand the concepts of rate of change and accumulation, the basic laws of kinematics will be..."
Cai Guoping suddenly paused when he said this, because he found that Wu Binna was lying there motionless, instead of making small movements under the table as usual.
If it had been someone else, Cai Guoping would have been flying over with a piece of chalk, but he did not deal with Wu Bin so cruelly. Instead, the first thought that came to his mind was
‘Did you put too much pressure on this child? I would be really guilty if he failed in school. ’
Cai Guoping naturally believed that Wu Bin would only fall asleep in class if he overstudy.
So Cai Guoping arrived at Wu Bin's table early and tapped the table with the knuckle of his index finger.
But he found that Wu Bin didn't react at all.
Gu Fan hurriedly pulled Wu Bin twice and said, "Wu Bin, hello, Wu Bin!"
"ah……?"
Finally, under Gu Fan's hard pulling, Wu Bin woke up and saw Cai Guoping standing in front of him.
"I'm sorry, Teacher Cai, I accidentally..."
"Come out with me!"
Cai Guoping said harshly.
"Why did you just fall asleep..."
Wu Bin rubbed his eyes and slowly followed Cai Guoping out.
The class was still quiet, and the big guys who could get perfect marks were taken out for criticism, so they didn't dare to say anything.
When he walked outside the classroom, Cai Guoping looked around and saw that there was no one around, and then whispered to Wu Bin: "Are you too stressed? Otherwise, in this competition, you will..."
"It's okay, Teacher Cai. I got high from school yesterday and couldn't sleep all night. I'm sorry, I didn't fall asleep on purpose."
Are you excited?
This was the first time Cai Guoping heard such words from a student. He scratched his hair and asked, "Is everything okay?"
"It's okay, teacher. I have been reading the books you gave me. They are very interesting. I will definitely participate in this competition."
"Okay, don't work too hard. You can go to the clinic or the office to take a nap. You have to understand that your body is the most important thing."
"I understand, teacher."
"Okay, then go ahead."
After Cai Guoping finished speaking, he returned to the classroom.
"Hua Yifei! As soon as I came in, I saw you talking there! What are you talking about!? Have you done all the questions at the end!? You have done all the questions and you come up to talk about it!"
Listening to Cai Guoping's roar, Wu Bin smiled knowingly. The teacher was naturally partial to him, but he couldn't let himself sleep in the classroom openly. The vicious acting just now was considered well-intentioned.