Xueba, I beg you to go and escort him quickly!

They also sighed one after another.

While analyzing Xu Heng's second way of solving the problem, he was shocked and sighed at the same time.

Tonight, they are destined to spend in mixed flavors.

Even in the dream, it was a nightmare dominated by Xu Heng.

When Yang Kaixuan woke up, he kept sighing, "Hey, it's easy for me..."

When he finished washing and was about to go from the dormitory to the classroom, Xu Heng was still sleeping.

Sleep so soundly.

Yang Kaixuan, "%￥#@￥%..."

After Yang Kaixuan and the rest of the dormitory left, Xu Heng's cell phone rang slowly.

"Ring Ling Ling..."

"Big slob, get up! I'm going to buy you breakfast!"

Xu Heng, "Ha... good!"

Xu Heng just got up, washed up slowly, and went to the classroom leisurely.

Originally, Xu Heng stepped into the classroom.

Moreover, it is usually the morning reading class at this time.

But who would have thought that there were several teachers standing behind even in the morning reading class today.

Xu Heng, "???"

Attending lectures?

It's too crazy!

At this time, Xue Laiyun was also there, and he looked at Xu Heng with doubts on his face.

Smiling, "Anything is possible, we have to be fully prepared, since they have made an exception to come for three days, early reading class, they should not let it go!"

Makes sense!

Xu Heng nodded, and then...he sat down, picked up the breakfast Yue Pingting had brought for him, and ate.

In front of these teachers, I ate with peace of mind.

These teachers, "%￥##￥￥%..."

They just stared at Xu Heng, Xu Heng, "?"

"What do you mean, teacher, don't you have breakfast? Have some?"

puff-

The teachers were dumbfounded and caught off guard.

I don't know if I don't teach class 25. After I came here, I realized how arrogant Xu Heng is!

Although they had all heard that Xu Heng was amazing before!

But when they saw it with their own eyes, they still couldn't accept it.

"This is even different than the rumors..."

Why is it different?

It is even more unscrupulous!

Even more arrogant!

Finished!

Xu Heng also has no intention of reading!

Pick up your phone and play!

Just in front of these teachers!

It just feels like home!

Play however you want!

These teachers looked at each other, and finally focused on Xue Laiyun.

Xue Laiyun patted the shoulders of these teachers, "You get used to it just by looking at it!"

These few, "Puff——!!!"

You are a teacher!

Doesn't your heart hurt when you say these words?

Teacher Xue!

You are a competent teacher!

How can you do this?

These teachers do not understand!

They do not understand very much!

Even, they are a little angry!

What made them even more angry was that after Xu Heng finished playing with his mobile phone, he stretched himself and wanted to sleep...

He actually wanted to sleep amidst the sound of reading aloud...! ! ! .

Chapter 291

Can this guy sleep?

Really! ! !

These teachers are eye-opening.

"This, this, this... this..."

"Sleep when you're full?"

"How can he sleep!"

"Yes! Although I heard that he slept! But I didn't expect that he just came to the class, and after eating, he fell asleep in the morning reading class!"

"Teacher Xue, don't you even mention him-ah!"

"He is so watery, is he at ease?"

"Others are studying hard, but he sleeps? Can his parents pay him to go to school?"

Xue Laiyun still smiled, and said the same words, "You will get used to it just by looking at it!"

"Besides, if there is no pressure to study, he really needs to go back to sleep."

These teachers, "%￥#@￥%..."

Xue Laiyun thought that they just didn't teach Xu Heng, they were not very balanced in their hearts!

Early self-study ended, Xu Heng was still sleeping.

The first class is math class.

Senior one, senior two, and senior three all have math teachers to attend classes.

Xue Laiyun has excellent teaching experience, so everyone has nothing to say about him.

In the classroom, the overall atmosphere is also very good.

The only thing that made the teachers uncomfortable was that Xu Heng was still sleeping.

They all fell asleep from the morning reading class to the first class!

Is this a pig? ? ?

The veins on the teachers' foreheads were throbbing.

How could this guy be so peaceful!

But this guy happened to be Xu Heng!

Even if he is like this, he can still get full marks in the exam.

This makes the teachers love and hate.

As Xu Heng woke up slowly, the first class was almost over.

He yawned.

At this time Yue Pingting looked at Xu Heng, Xu Heng rubbed his eyes, "What's wrong?"

Yue Pingting, "I want to ask you a question. Look, I can't figure out the question written on the teacher's blackboard. I don't know what's going on..."

Xu Heng raised his head and took a closer look.

"It's wrong, x2 belongs to the wrong interval, so you can't figure it out."

As soon as this remark came out, the math teachers who were listening in the last row were all dumbfounded!

"This, this...how is it possible! This guy saw the mistake just by looking at it?"

"???"

When all the teachers were shocked and confused, Xu Heng waved at Xue Laiyun.

Xue Laiyun immediately came to Xu Heng.

Xu Heng, "Teacher, is there something wrong here? Is the interval between 0 and 1/2? Can you take a look?"

As soon as this word comes out!

Xue Laiyun looked at the question immediately, and after reviewing it quickly, his expression changed suddenly.

"Yes...that's right! I was indeed wrong! I'll change it right now!"

The math teachers at the end were dumbfounded.

Monster!

It's just not human!

Xu Heng, "Also, teacher, I think you can add a question so that everyone can break through themselves!"

Xue Laiyun's heart skipped a beat, "Tell me?"

All the math teachers at the back pricked up their ears and their eyes lit up.

Xu Heng came to pick up a pen:

The third small question: remember an=f(2n+1/2n), find the limit of lnan (n→∞).

"This question is pretty good. If there is no third question, it will be a loss."

As soon as Xu Hengsui said it, it was just such an understatement, but it upgraded this question perfectly.

The math teachers stared at the questions on the blackboard, especially the math teachers in the third year of high school, who almost jumped up with excitement.

Xue Laiyun quickly came to the blackboard and began to correct the questions.

"Students, the teacher will change the title, and everyone will read it again."

topic:

设f（x）是定义在R上的偶函数，其图像关于直线x=1，对任意x1；x2∈[0,1/2],都有f（x1+x2）=f（x1）f（x2）

（1）求f（1/2）及f（1/4）

(2) Prove that f(x) is a periodic function

(3) Record an=f(2n+1/2n), find the limit of lnan (n→∞)

The last teacher couldn't help but muttered, "After Xu Heng made such a change, the difficulty of this question has increased! The basic problems of the limit of sequence are all involved!"

"It's a test of the students' computing ability and logical thinking ability!"