I just want to be a quiet scholar

Chapter 34 The Second Half of the National Mathematics League Finals

"The answer to the last question, I also wrote the root number 2 of 3." Shen Qi said.

"How awesome!" Qi Jianhong was excited.

"Fortunately, brother Jianhong, it's not too arrogant." Shen Qi smiled, this little brother has blindly worshipped me since the national pre-judgment, hey, so helpless, the burden on the big man's shoulders is heavy.

Qi Jianhong explained: "Oh no, I mean I'm so good."

Shen Qi was embarrassed: "What are you so arrogant?"

"I actually got one question right in the National Finals paper. Brother, do you think I'm good or not? My answer is the same as yours. It's root 2 of 3, which means I got it right." Qi Jianhong Ting show off.

"You're so annoying, go and go, put it aside and cool down." Shen Qi picked up the "Mathematics Herald" again and continued his research.

Qi Jianhong asked again: "You should have done all the three questions in the first half of the National Finals, right?"

"Do whatever you want, depending on your mood."

"Brother, stay safe!"

Afterwards, the other team members returned to the dormitory one after another, and they communicated with each other. It was generally believed that the national final exam paper was too difficult.

Mr. Tian did not give the team members a hard target. He heard that a team member from Zhejiang Province, a powerful province of Zhejiang Province, had fainted in the examination room. In the end, he couldn't insist on continuing to answer the questions. He had to give up. After crying and fainting, the Chinese Mathematical Society invited a psychological counselor to conduct psychological intervention on the contestant.

At least we save that the mental quality of these team members is qualified, not the so-called glass heart. Teacher Tian is very pleased. He said to the team members: "This trip to the capital is coming to an end, and there are the last three questions left tomorrow. I hope you will gain something from beginning to end and not leave any regrets for your youth. No matter how good you are in mathematics, it may not make you rich, but you must remember that the only language to communicate with God is mathematics.”

Shen Qi held up the mineral water bottle and made a generous statement: "Mr. Tian said it very well, come here and make this cup of chicken soup!"

"Dry!"

"Dry! This chicken soup is a pure natural green product, non-toxic!"

All the team members drank the cola and the Duanxuebi, and they all drank it, the momentum was like a rainbow.

"A group of stinky boys..." Teacher Tian laughed, he liked the atmosphere in the team, and it was different from a few days ago.

The stars move and the sky changes, the moon sets and the stars rise in the east.

Time flies so fast, and it's the next day.

As shown in the previous article, the national competition is divided into two halves. Yesterday’s 4.5 hours to answer three questions is the first half, and today’s second half is also 4.5 hours to answer the remaining three questions.

This is a protracted battle, testing not only the mathematical strength of the contestants, but also their perseverance and psychological endurance, and most of these contestants are under the legal age of majority.

It's almost over and the results are about to be revealed.

The exam papers for the second half of the National Finals had been distributed to the players, and Shen Qi took the exam calmly.

The exam papers for the first half of the National Finals were all sealed yesterday, and they will be unsealed after 4.5 hours, and will be reviewed together with the 6 questions in the second half exam papers.

Shen Qi is confident that he can get a high score in the three questions yesterday, but the battle is not over yet.

Shen Qi outside the examination room is lively by nature. Once the pen is in his hand and the scroll is rolled out, he immediately enters a fighting state. Come on, let's fight!

The first question in the second half of the national final, what is the complex root of P(x+iy)?
Shen Qiluo thought about it and picked up a pen before answering.

Integers, fractions, irrational numbers, negative numbers and complex numbers, the world of number systems is simple, the world of number systems is complex.

In addition to the fact that the complex number circulates on paper and academic research, several other number systems are used by ordinary people every day. Mathematics seems to be illusory and profound, but in fact it is the most widely used basic subject in the social market.

Mathematics can be used to buy vegetables, settle accounts, invest in stocks and finance, and it can also be used as the only language to communicate with God to spy on the vast universe.

Proof operations based on pure number systems are pure algebra, and although most mathematicians prefer geometry, algebra still has its place.

What is the complex root of P(x+iy)?
Where does it come from and where is it going.

The first university textbook that Shen Qi taught himself was Gao Dai. He liked Ke Xi, but also had a headache for him.

No matter which country publishes the ranking list of historical great mathematicians, Cauchy can definitely occupy a place. He is definitely a 15-level reference template, but the systematic sampling is Gauss.

The reason why Shen Qi likes Cauchy is that Cauchy has pushed the development of algebra forward by himself, and his contribution to algebra is unparalleled.

The first question in the second half of the National Finals will inevitably use Cauchy's theorem.

Shen Qi quickly found the product of the difference between the two roots. The algebraic language is called the discriminant. It is a sharp blade, and the linear combination of polynomial and derivative is vulnerable in front of it.

P(x+iy) is a timid coward. It hides behind the polynomial of x and does not appear vulgar, relying on the "discriminant is not 0" defensive tower to kill Shen Qi's troops.

"Hehe, you scumbag think I dare not cross the tower to kill? Hehe, you are too naive, P(x+iy)."

Shen Qi unleashed a big move. He used the shield "D'Alembert's Law" to cooperate with Cauchy's theorem, forcibly rushed under the defense tower with "discriminant not 0", and tore P(x+iy) wildly. It is u(x, y)+iv(x, y), which is neat and tidy, and the whole body retreats.

Under Shen Qi's powerful offensive, P(x+iy) lost its resistance in an instant, and it honestly handed over its chrysanthemum: a+bi.

The first question of the second half of the national finals, break it.

If you are justified, you should be unforgiving, and you must not be soft-hearted in the competition arena.

Algebra must be followed by geometry.

The second question is Analytical Geometry, which is in a similar order to yesterday's exam.

Plane analytic geometry in high school is the basic part of coordinate geometry. The patterns in the coordinate system look like ripples like butterflies. Symmetry has symmetrical harmony, and asymmetry has asymmetrical rhythmic beauty.

The simpler the girl looks, the more difficult it is to get her to conquer her, because the conditions she gives are harsh.

Shen Qi thought for an hour here. He could draw mussel lines, cutting circle curves, and even vine-leaf lines. Each curve in the coordinate system represented a meaning and corresponded to an answer.

Shen Qi must go through the coordinate fog as soon as possible to capture the most beautiful and correct curve.

"Yes, that's right, a logarithmic spiral."

Shen Qi finally started to write. He came across logρ=aθ, a curve like a conch and a snail. She turned and turned, circle after circle, and finally passed the junction point o of the x-axis and the y-axis.

There are thousands of beautiful skins, and there is only one final destination. The beautiful girls in the coordinate system—curves, no matter how harsh they are, they will eventually pass through the origin and return to their simple and unpretentious original intentions.

"Fix it!"

Two and a half hours later, Shen Qi completed the answers to the first two questions in the second half of the National Finals. Counting the three questions from yesterday, he completed a total of five questions.

"Huh..." Shen Qi took a deep breath and took a break. A few months ago, he couldn't imagine that he would have the opportunity to participate in the top mathematics competition for high school students in China and become one of the TOP60.Oh no no, I fainted and retired one, and it is one of the TOP59.

At this moment, with just one last step away, Shen Qi may touch the first gold medal in his life, a national-level mathematics gold medal.

(End of this chapter)