Chapter 19 I actually care about him

Regarding the difficulty of this paper, the math teacher actually lied. It was not just a few points harder than the college entrance examination as he said, but it was much more difficult. The purpose was to test the students' understanding of the questions.

At this time, the students all received the test papers, but they did not feel the difficulty at the first time. However, after writing their names and classes, they entered the first multiple-choice question. Most of them were confused instantly. It stands to reason that the first multiple-choice question should be easy to get points, but this was not the case.

In fact, it is not very difficult, it’s just that the calculation process is a bit complicated. Of course, according to conventional thinking, complex calculations are indeed required, but as long as the thinking is slightly changed, it can be simplified.

The students with good grades reacted quickly and calculated the correct answer in an instant.

The following questions all use the same routine to test students' thinking, but it is not until the sixth question that the difficulty rises to a higher level and begins to test students' mathematical logic, until the ninth and tenth questions, when the real calculations come.

However, there will always be a few top masters in a class, as well as a group of second-tier junior masters. These difficulties are just appetizers for them.

But the real challenge has just begun.

As time passed, Yan Xiaoxi, who was sitting on the podium to supervise the exam, found that the whole class was filled with a sense of struggle. Everyone's face was filled with pain, helplessness, and even despair that made them want to die.

Of course.
Moving their gaze to a certain Wolong, he had a calm expression on his face and was writing quickly on the paper with a black pen in his hand. He was in a completely different world from them.

Yan Xiaoxi pursed her lips, feeling a little satisfied. It seemed that he was taking the exam seriously. Not bad! I want to see if he can get the first place in mathematics in the whole grade with his all-out effort. According to common sense, there should be no problem.

"teacher"

"Are there any extra papers?" Yan Xiaoxi asked the math teacher next to her.

"This one is yours."

The math teacher handed the test paper to Yan Xiaoxi, then said with a smile: "It doesn't matter whether you look at it or not, it will be very simple in your eyes anyway."

After all, she was the third place in the National Mathematical Olympiad and was admitted without recommendation. The teachers in the entire mathematics group would not question Yan Xiaoxi's ability, so she was not allowed to take this exam. If she had taken it, she would have undoubtedly been the first place.

"I'll take a look."

After Yan Xiaoxi got the test paper, he glanced at it casually. It seemed that the difficulty level was not very high. Feeling the boredom, he turned directly to the last question. Suddenly, he had a little interest. After thinking for a while, he picked up a pen on the podium and started answering questions.

The math teacher was sitting nearby, and was attracted by Yan Xiaoxi's problem-solving process. Although he had never doubted Yan Xiaoxi's talent, the indescribable shock he felt after seeing it with his own eyes made him open his eyes wide, with an expression of disbelief between his brows.

In less than a few minutes, the final question that the entire math group thought was ridiculously difficult was solved by Yan Xiaoxi in an ordinary way. The solution she gave was even more concise than the standard answer.

This... is this talent?

Horror!
The math teacher took the test paper tremblingly, repeatedly looked at Yan Xiaoxi's problem-solving process, pointed to a certain step in the process, and asked in a low voice: "Why is Yan Xiaoxi's step like this?"

"I simplified it. Actually, it should be two steps, but that would affect the fluency of the whole problem-solving, and it doesn't look very beautiful, so I just put them together." Yan Xiaoxi pursed her lips and said softly: "In fact, there are many ways to solve this problem, but other methods are more inclined to competition." The math teacher nodded repeatedly, with a slightly bitter expression. The whole math group discussed the result for an hour, but unexpectedly, it did not survive more than five minutes in Yan Xiaoxi's hands. It was so ironic!
But then again, this is the only way to show Yan Xiaoxi's talent in mathematics, and I heard that her real strength is physics, and her result in the physics competition was second in the country.

at the same time,

Chen Xiaoxin also finished the last big question. When he saw the question for the first time, he knew that he could just use Taylor expansion. But after all, it was just a high school math problem, so he had to use inequalities here, and the commonly used ones were enough.

think carefully
This type of inequality questions is quite popular among teachers.

Chen Xiaoxin was stunned for just a moment, then picked up the pen and started solving the problem. His speed was even faster than Yan Xiaoxi's. It seemed that he didn't even think about the process of writing on paper, he just picked up the pen and started solving the problem.

And he didn't use any draft paper, he just wrote a few words on the desk.

it's over.
From the beginning to the completion of the last question, Chen Xiaoxin only took less than half an hour, twenty-five minutes to be exact.

Chen Xiaoxin looked up at Yan Xiaoxi, and it happened that Yan Xiaoxi was also looking at him. The two looked at each other in the classroom in front of the whole class. Soon Yan Xiaoxi looked away, and a slight blush appeared on both sides of her pretty face.

Neuropathy.
Why are you staring at me suddenly?
Yan Xiaoxi tried hard to adjust her mood, and then glanced at someone furtively. When she found that he was in a daze, she couldn't help but be shocked.

Could it be that he had already finished it? The whole paper?
He quickly looked up at the time. It was less than half an hour. Yan Xiaoxi wanted to take a look at his paper. Although it was not difficult at all, it was still a bit difficult to finish it in half an hour.
Even if I were to do it myself, it would probably take about thirty-five minutes, because there are a lot of calculation questions and a lot of steps. Even if I simplify it, it is still a bit time-consuming.

Forget it
He can take as much time as he wants, I only care about the final result.

As the bell rang at the end of the second period, this torturous exam came to an end.
Everyone in the class fell into deathly silence, including those students who usually had excellent grades, whose faces were filled with despair and pain at this moment.

difficult!
It's so difficult that it's outrageous!

Almost no one could finish the paper, even the good students left many questions blank.

Yan Xiaoxi returned to her seat and looked at her classmate Wolong who looked relaxed and contented. She lowered her voice and asked, "How did you do the last question?"

"Use inequalities." Chen Xiaoxin said casually.

Hearing his answer, Yan Xiaoxi immediately breathed a sigh of relief, as if a stone had fallen from her heart.

The result is the next second.
She raised her hand and slapped herself lightly.

Damn it!
I. I actually care about him! !

(End of this chapter)