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

Ok? ? ?

All eyes come here!

The originally peaceful and harmonious scene suddenly made people nervous.

The teacher frowned, "What do you mean? Could it be that Xu Heng found the same topic as me?"

"My problem, I just sorted it out and calculated it, so I shared it on the blackboard!"

The screaming teacher immediately explained, "No no no! You misunderstood! I was so excited! Because you just wrote this question, Xu Heng gave the answer in a short time, and this answer, Exactly like yours."

The teacher's words spread to everyone's ears.

keep echoing...

"Exactly the same, exactly the same, exactly the same..."

Especially the last four words, in everyone's mind, they can't get rid of it no matter what.

They all looked at Xu Heng in surprise.

"How did you count so fast?!"

"Student Xu Heng, have you seen this question before?"

"Impossible! The values ​​here are all determined by myself! Even if you have seen it, you can't calculate the correct answer so quickly."

quick?

You are fast!

Xu Heng looked at everyone.

Everyone looked at Xu Heng.

"Uh... Shouldn't our top priority right now be to discuss whether this question can be used in the Mathematical Olympiad test paper?"

Everyone's eyes returned to the blackboard.

"This question is very good, yes!"

"Hmm! I feel good too!"

"That's it! Put it in the test paper!"

"What's everyone's opinion?"

All pass.

It may seem sloppy, but in fact everyone here is very authoritative.

There are very few topics that can be passed by them unanimously.

Soon, the vote will be completed...

Swish!

All eyes turned to Xu Heng again.

Xu Heng, "Eh...don't look at me like that!"

Especially those old professors from prestigious universities looked at Xu Heng even more fervently.

Everyone is in shock!

How strong is this guy's computing power!

Although everyone knows this question, it still takes a little time to figure out the correct answer!

But Xu Heng was lucky, he subconsciously answered the question and got the correct answer in a very short time.

They ask themselves, they can't do it!

This is no simple elementary school math problem!

The questions in the Mathematical Olympiad, even if they are filling in the blanks, have to go through a series of calculations!

But this guy Xu Heng...

PS: 2021!Happy Yuan Dynasty!

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Chapter 139

"Student Xu Heng, did you really figure it out?"

Zhu Tiesen asked with a face full of fear.

Before Xu Heng could answer, the teacher next to him said excitedly, "Yes! What he murmured just now must be the answer!"

"Just before the topic on the blackboard appeared for a while, Xu Heng blurted out the answer!"

clap la la...

There was an uproar.

"Have you given the answer by oral calculation?"

"Hiss...Xu Heng actually has such computing power?"

"It's incredible! It's incredible! We old men feel like we've been eliminated!"

"It's true that the back waves of the Yangtze River pushed the front waves, and the front waves died on the beach!"

"..."

Xu Heng was speechless.

You are paying attention to the wrong point!

Didn't it come out for the volume?

Aren't you here to discuss the topic?

Hey Hey hey!

Don't look at me like that!

This one is like watching giant pandas!

Xu Heng, "cough cough! Everyone, how can I be so good? I can play straw paper. Look at it?"

Hold up his acting paper...

It's okay if you don't pick it up, but when you take it out, everyone is even more surprised!

"Is it that easy?"

"Student Xu Heng, you don't seem to be using the problem-solving ideas on the blackboard?"

"It's really different!"

Someone's eyes wandered back and forth between Xu Heng's performance paper and the blackboard, and finally made a decision.

"It's really different! It seems that student Xu Heng's is easier... This is the standard answer, maybe it will be better... What's your opinion?"

Everyone looked at it seriously.

Especially the teacher who came up with the question, he was stunned for a moment, and then directly erased the answering steps on the blackboard, and wrote Xu Heng's train of thought.

Xu Heng, "Uh..."

You don't have to do this!

But instead of being angry, the teacher who came up with the question gave Xu Heng an approving look.

"Young people's brains are easy to use! This method is good!"

Xu Heng didn't say much.

He was afraid that if he said it, this group of people would chase after him again!

After all, this is really a calculation process he wrote subconsciously. If he is serious about finding a way, there are even more eye-catching ideas.

But let's not talk about it...

Xu Heng turned his head and looked at these people on the left and right. Their eyes were burning, as if they had found a treasure.

Xu Heng curled his lips and murmured to himself, "From now on, I will calculate in my head...it's better not to make a sound!"

It's better not to cause trouble.

For Xu Heng, being overly concerned is already troublesome.

Besides, he was followed by a group of top mathematics professors in the country!

"You are busy with your work! Don't look at me like that!"

Xu Heng gained another group of fans...

Some of them have the same eyes as Wu Liubai, Qian Yuejiang, Sun Jianhua, and others...

After a while, Zhu Tiesen came back to his senses, "Everyone is busy with their own work! This question is considered to be passed!"

A seemingly simple and random vote is actually just a coincidence.

Sometimes, for a question, the two professors could blush so much that they almost rolled up their sleeves and fought on the ground!

As time went by, everyone began to enter their respective states again.

Xu Heng is also searching hard.

Sudden……

"Student Xu Heng, what do you think of my question? If it were you, would you answer it like this?"

Xu Heng was taken aback.

Damn, you are over 40 years old and well-informed, why do you ask me!

Xu Heng hurriedly refused, "Teacher, teacher, don't do this! Aren't you offending me?"

My teacher is very serious about this, "I am asking you for advice, student Xu Heng! Please enlighten me!"

Xu Heng, "%￥##@..."

Are you sure this is the group for the Mathematical Olympiad?

Is it because I overestimated you?

Professors and teachers, I beg you to be individuals!

Don't flatter me like that, okay...

But the teacher had earnest eyes.

Xu Heng, "Uh..."

Fine!

Just help you take a look.

topic:

Suppose the distance between point P and plane a is the root sign 3, and point Q is on plane a, so that the angle formed by straight line PQ and a is not less than 30 and not greater than 60, then what is the area of ​​the area formed by such points Q?

A fill-in-the-blank question.

Xu Heng was stunned...

What a simple question!

Should I say it, or shouldn't I say it?

Do I give the answer right away, or pretend to do the math on paper?

But if you write and draw on the acting paper, what if your thinking is different from that of this teacher and you are used to brag about it?

urgent!