Chapter 256 (1/2)
Last year's finals of the college students' mathematics competition?
Cheng Nuo is surprised.
Although I had expected the origin of this set of topics, I didn't expect it was the competition topic of last year.
And it is also a competition topic for students majoring in Mathematics in grade three and four.
No wonder it's so difficult.
You know, Cheng Nuo is only a freshman for more than a month.
In the final of last year's competition, there must be senior students from Tsinghua University.
That is to say, no one can completely solve the three problems even if she is a senior student who has been studying in the Mathematics Department of Tsinghua University for three or four years.
This thought, Cheng Nuo's heart felt better.
”Well, show me your steps.” Professor Lu said to Cheng Nuo, ”as I said before, you should choose one of the three topics.”
”But if you don't do it right, I won't sign it.”
Cheng Nuo nodded, ”well, teacher, I know.”
”Oh, are you so confident?” Professor Lu took Cheng Nuo's answer with a smile. ”I'll see what you're capable of.”
Professor Lu is not familiar with Cheng Nuo.
In other words, until now, Professor Lu has no idea what the name of the student standing in front of him is.
Given to Cheng Nuo's three final questions in the final of last year's competition, Professor Lu's purpose is to make the student in front of him to retreat.
Let him know that it is almost impossible for him to obtain the non listening qualification of his course!
But now
After only ten minutes, the student told him that he had worked out a problem.
This is really a surprise to Professor Lu.
There is also Cheng Nuo's momentum, which does not seem to have no foundation at all.
Professor Lu had to take it seriously.
This student It seems that I still have real ability!
With this in mind, Professor Lu brought the full page of formula answers written by Cheng Nuo before him and looked at them row by row.
In the whole office, only two people gasped.
Cheng Nuo stands on one side, looking at Professor Lu who is checking his answers. He has no waves in his heart.
For his own proof steps, Cheng Nuo has 100% absolute confidence.
Cheng Nuo can't do any math problem. If he does it, he can do it right!
With Piao Rou, drink Shenbao, is so confident!!
Professor Lu's browsing speed is very fast, with answers already in his mind, plus a strong sensitivity to those mathematical formulas.
In less than two minutes, without taking a pen to calculate on the draft paper, Professor Lu had read all the steps of proving the third problem given by Cheng Nuo, a page of paper, with a total of more than 20 formulas.
Professor Lu slowly put down the A4 paper in his hand, looked up, did not speak, just looked at Cheng Nuo.
Silence
Long silence
Silence is Cambridge tonight.
After being watched by Professor Lu for two or three minutes, Cheng Nuo is in a panic.
Professor Lu, he can't Covet my beauty?
”Teacher, my question...” Cheng Nuo can't stand this strange atmosphere, scratching his head, chatting and laughing.
Professor Lu still did not speak, just took Cheng Nuo's application form to the front, and signed his name in the blank space of the teacher's signature.
”Take it!” Professor Lu pushed the completed application form to Cheng Nuo.
”Thank you, teacher.”
Here we are!
Cheng Nuo with a very excited mood, picked up the application form, turned to leave.
”Wait a minute.”
At this time, Professor Lu's voice came from behind Cheng Nuo.
Cheng Nuo's body was abrupt.
He was very reluctant to turn around, corner of the mouth reluctantly pulled out a smile, ”teacher, there are other things?”
”Are you interested in taking part in next year's math contest?” Professor Lu spoke in no hurry.
…………