Matching method, commutation method, undetermined coefficient method, structural equation elimination method......

Just by glancing at the function problem, Wu Bin's mind will burst out with several solution ideas, and instantly find the most suitable one, which is completely an experience he has never had before!

'Cool!! ’

This smooth feeling purified Wu Bin's body and mind.

In terms of function, Wu Bin has already laid a very solid foundation, and now that the idea has been developed, it is natural to rise from the ground.

Replace it with the sine theorem, multiply the denominator by it, and then substitute it into the induction formula......

Write it as an exponential function, separate xy, and expand the two finger functions into two terms......

First, write the sin(nx) expansion to find the law and extend n from natural numbers to real numbers......

……

At this moment, on the grassland of mathematics, Wu Bin is flat!

"Gollum ......" "Gollum ......"

Wu Bin, who was galloping on his horse, was just about to conquer the next grassland, but there was a burst of screams from his stomach, and then he remembered that he hadn't eaten dinner yet......

In the quiet classroom, Wu Bin's stomach screamed so loudly that several people around him couldn't help but snicker.

But at this time, Wu Bin didn't have any food reserves, so he had to look at the time and found that it was already the third period of self-study, and he would go back to the dormitory if he couldn't bear it.

It's a pity that Wu Bin can bear it mentally, but his stomach keeps protesting through his intestines, and bursts of "gurgling" sound keep coming out.

However, Wu Bin couldn't take care of it, pulled up the reins, and prepared to continue galloping again.

But just when Wu Bin raised the whip in his hand, a box of 3+2 biscuits suddenly appeared in front of him.

Wu Bin, who was stunned, turned his head and found that the biscuits were handed over by Pei Jiamin.

"Give it to me...... Is it? Wu Bin pointed at himself, a little incredulous.

And the surrounding classmates also made a coaxing sound like "Oh~~~", after all, in the high school class, Pei Jiamin's behavior is quite bold.

"Otherwise, who else will it be, I can't study if it's noisy, hurry up and eat! Remember to give me back a box tomorrow. ”

"Oh...... Thank you. ”

After thanking him, Wu Bin took the biscuit.

This woman really doesn't miss a chance to humiliate me, forget it, for the sake of biscuits, don't bother with her. ’

And the surrounding classmates lost their interest in watching gossip when they heard Pei Jiamin say this, after all, Wu Bin's stomach scream is really annoying, and it affects Pei Xueba's mood next door is normal.

At this time, Teacher Qin, who was on duty at this time, was not in their 3rd class, and Wu Bin ate more openly, eating several pieces in three bites.

This chocolate vanilla flavor is surprisingly delicious. ’

3+2 This kind of biscuits in a pack of 3 pieces and 5 pieces is a luxury for most students, after all, most people's thoughts are that with this money, it is better to buy several packs of spicy noodles and feast! Well, this includes Wu Bin.

After filling his stomach, Wu Bin continued to gallop on horseback, and Pei Jiamin, who had been secretly observing on the side, also sighed.

In fact, she has also had a long psychological struggle whether to hand out this pack of biscuits, after all, she also knows that it will be very eye-catching, but thinking that Wu Bin stayed in the classroom so late before, and was called away by Teacher Cai, it is very likely that she didn't eat dinner at all.

"Next time! I'll show you the next exam that I'll be as good as physics in all my subjects. ”

At this time, Pei Jiamin's mind suddenly flashed the words Wu Bin said, and when he thought that he might be working harder to prove to himself, he suddenly felt a little happy in his heart.

So with a little courage in his heart, Pei Jiamin handed the biscuits out at once.

Of course, she didn't think to say the latter sentence, but she was coaxed by her classmates and blurted out in a hurry.

'I hope he's not mistaken......

Pei Jiamin peeked at Wu Bin again, and found that he was munching on a book and chewing biscuits, as if he was eating a meal.

The matter was solved, and Pei Jiamin also continued to do his own question, but the corners of his mouth raised a small arc.

……

After completing two trigonometric questions, Wu Bin determined that his reading ability has been greatly improved, and he will soon be able to find out what he needs to ask for the topic, which should be the help brought by abstract thinking, which can be said to be very obvious.

However, Wu Bin has not swelled, although his ability to do math problems has been strengthened a lot, but it has not reached the point where he is 100% sure that as long as he solves a physics problem, he is 100% sure that it must be right, which shows that he still needs to work harder.

'But if you give me a little more time, I should be able to get it through,'

Wu Bin can have this confidence not only because he is now more sensitive to functions, but also because the set of note-taking methods taught to him by Liu Yushan is very useful, and with the two bonuses, it is only a matter of time before he thoroughly masters high school mathematics.

……

Three days passed quickly, and on this day, Cai Guoping was standing on the podium and excitedly explaining a question that 80% of the class had done wrong.

"So how many times have I stressed it to you! If you can conceptually understand the concept of the rate of change and the amount of accumulation, the basic laws of kinematics ......"

Cai Guoping paused suddenly when he said this, because he found that Wu Bin was lying there and didn't move, instead of making a small movement under the table as usual.

Replaced by someone else, Cai Guoping would have flown over with a chalk head a long time ago, but he didn't do this ruthlessly to Wu Bin, but the first thought that appeared in his mind was

"Isn't it too much pressure on this child, I will really do evil if I fail this school." ’

Cai Guoping naturally believes that Wu Bin will only sleep in class if he overlearns.

So Cai Guoping went to Wu Bin's table early and knocked on the table with the knuckles of his index finger.

But I found that Wu Bin didn't react at all.

On the anxious side, Gu Fan hurriedly pulled Wu Bin twice and said, "Wu Bin, hey, 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, Mr. Cai, I accidentally ......"

"Come out with me!"

Cai Guoping said viciously.

"Why did you fall asleep......"

Wu Bin rubbed his eyes and slowly followed Cai Guoping out.

The class is still quiet, and the big guys who can get full marks in the test have been taken out for criticism, how dare they squeak.

Walking outside the classroom, Cai Guoping looked around at no one, and whispered to Wu Bin: "Is there too much pressure?" Otherwise, you'll ...... this competition."

"It's okay, Mr. Cai, I studied yesterday and didn't fall asleep all night, I'm sorry, I didn't fall asleep on purpose."

Got you started?

It was the first time Cai Guoping had heard such a word from a student, so he scratched his hair and asked, "Is it really okay?" ”

"It's really okay, teacher, I've read all the books you gave me, it's very interesting, I'll definitely participate in this competition."

"Okay, don't work too hard, go to the health room to sleep for a while or go to the office to sleep for a while, you have to understand that the body is the most important thing."

"I see, teacher."

"Okay, then you can go."

Cai Guoping returned to the classroom after speaking.

"Hua Yifei! As soon as I came in, I saw you talking! What are you talking about!? Isn't it possible to do all the questions that follow!? Will do you come up and speak! ”

Listening to Cai Guoping's roar, Wu Bin smiled heartily, this teacher is naturally partial to himself, but he can't let himself sleep in the classroom like this, and the vicious acting skills just now can be regarded as well-intentioned.