Super Scholar: Start with a low regulatory score!

Chapter 51 The real ruthless person doesn't even need a draft paper, just a glance?
"?"

"???"

"How... how is it possible?"

"Am I dazzled, or am I dreaming?"

As a senior mathematics teacher, Cao Tianyuan has always been known for his maturity and prudence, but now he is dumbfounded.

just because...

Jiang Nan has already finished two-thirds of the paper, leaving only the last three big questions?
How can this be?

He knew that Jiang Nan was very good, and he thought that although this paper was difficult, it would not be difficult for Jiang Nan.

But the problem is...

No matter how good you are.

It's impossible to do it so fast!

To know……

It's less than 10 minutes before the exam starts!

Simply incredible.

Cao Tianyuan pushed the black-rimmed glasses on the bridge of his nose, and at the same time, his brain was running wildly. He wanted to see if Jiang Nan did it so fast, if he was really doing it right.

then……

The first question is correct.

Second question, correct.

The third question is still correct.

As for the following multiple-choice questions and fill-in-the-blank questions.

Honestly.

With no pen and paper in hand, Cao Tianyuan would really be unable to do the calculations in his head.

to this end.

He put it aside.

Look directly at the answers to the questions that follow.

“1：已知二次函数f(x)=ax^2+bx+cx，不等式f(x)>-2x的解集为(1，3)。

(1) If the equation f(x)+6a=0 has two equal real roots, find the analytical formula of f(x).

(2) If the maximum value of f(x) is a positive number, find the value range of the real number a. "

The answer written by Jiangnan is...

untie……

Because the solution set of the inequality f(x)>-2x is (1, 3).

所以x=1和x=3是方程ax^2+(b+2)x+c=0(a小于0）的两根。

And because (b+2)/a=-4.

c/a=3.

So b=-4a-2, c=Зa.

And the equation f(x)+6a=0 has two equal real roots.

and so……

……

f（x）=-1/5x^2-6/5x-3/5。

……

（2）：由1可知f(x)=ax^2-2(2a+1)x+3a=（-a^2-4a-1)/a。

……

Because a is less than 0.

So the maximum value of f(x) is (-a^2-4a-1)/a.

……

可得：所求实数a的取值范围是(-∞，-2-√3)U(-2+√3，0)。

……

This……

This……

This……

How to describe it?
The cause and effect are meticulous, and there is no sloppiness in the slightest.

Read the problem-solving process.

Cao Tianyuan was completely dumbfounded.

he can be sure...

Jiangnan got this question 100% correct.

To know……

This question is not easy!
It is no less than the finale of the college entrance examination.

But for Jiangnan, it's as simple as chopping melons and vegetables, and it doesn't seem to require brain thinking?
It's just...

"Fuck!"

Cao Tianyuan only thought of these two words.

He thought he knew Jiangnan very well, but now he realized that he didn't know Jiangnan at all.

Although he said it before.

Jiangnan may be able to get the national one in the Olympiad, but that is more or less an incentive for Jiangnan.

But now...

He really believed that Jiangnan could win the first place in the country.

this son.

What a monster!

Cao Tianyuan can't think of other words to describe Jiangnan's mathematical talent, only monstrous.

At the same time.

When another invigilator was inspecting the examination room, he found Cao Tianyuan standing motionless behind Jiangnan, and walked over curiously, "Mr. Cao, what's the matter?"

"Why do you keep staring at this student?"

"Could it be..."

"Do you suspect that he cheated on the exam?"

"..."

"Cheating?"

"How could he cheat?"

"I'm appreciating and learning. This kid's problem-solving ideas and speed are enough to make people overwhelmed."

"..."

"Oh?"

"Is it?"

"Is he so powerful?"

"How can you get such an evaluation from Mr. Cao?"

Hearing Cao Tianyuan's words, the invigilator still had some disbelief, and stretched his neck to look at Jiangnan's test paper.

but……

next second!
"This……"

"This……"

"how can that be?"

"It's only been a while since the exam. Others haven't even finished the multiple-choice questions, but he has done the last two questions?"

The invigilator was also stunned.

It was similar to Cao Tianyuan's mental state just now.

"he……"

"Did you do it right?"

"Isn't it just random writing?"

He was shocked by Jiangnan's answering speed, but doubted Jiangnan's accuracy.

of course!

He is not a math teacher.

There is no way to understand it instantly like Cao Tianyuan.

but……

Cao Tianyuan nodded vigorously at him, "It's not just scribbling, but it's all correct, and the accuracy rate is 100%."

Whoa!
As soon as this word comes out.

The invigilator immediately widened his eyes and gasped. If it wasn't for the fact that he was in the examination room and needed to maintain discipline, he couldn't help but jump up.

shout out.

"Fuck!"

He can suspect Jiangnan.

But he would not doubt Cao Tianyuan.

After all, Cao Tianyuan is the deputy head of the school's mathematics group, a senior expert with a super high level of mathematics.

Cao Tianyuan said that Jiangnan did everything right.

Then Jiangnan must have done the right thing.

But that's why.

He was so surprised.

Less than 10 minutes after the exam started, Jiangnan almost finished the entire math paper, and it was 100% correct.

What is this concept?
Straight A student?

Super academic?

Do not!
This can't be used to describe Jiangnan at all!
At the very least, he is also a god of learning, a super god of learning.

and……

He also noticed something.

That is……

Jiangnan actually answered directly on the answer sheet, and the test paper and draft paper were all blank?
even……

After Jiang Nan finished the penultimate question, it only took a few seconds to read the last final question, and then he picked up his pen and wrote the solution directly on the answer sheet.

"This……"

The invigilator's jaw almost fell to the ground.

Shocked, dumbfounded, dumbfounded.

"classmate!"

"What the hell are you?"

"Are you sure you are taking a math test?"

"Didn't you say that the finale of mathematics is difficult? But you can do it just by looking at it?"

"You don't even need draft paper, and you don't need to calculate it in advance. Are you too ruthless?"

"You obviously didn't pay attention to mathematics! You didn't pay attention to the teacher of the test group!"

"You are really #￥%@￥%!!!"

"..."

(End of this chapter)