“Dear audience， we meet again! Today is the second day of the national cultural exchange meeting， yesterday's competition champion is the Z national team， today our competition topic is mathematics， after all today's champion flower falls who?

Let us look forward to it.

Today's rules are the same as yesterday's. Let's ask the representatives to decide the order of the game for the draw.” (Dear viewers, we meet again!) Today is the second day of the National Cultural Exchange Conference, yesterday's champion of the competition is the Z country team, and today our competition topic is mathematics, who is the champion today?

Let's stay tuned.

Today's game rules are the same as yesterday's, so let's ask the representatives to decide the order of the game in order to draw lots. ）

It's still the same as yesterday, and the people on the stage are all representatives of the senior group.

The representative sent by country Z is Mr. Quan, and the representative sent by country M is Si Qiqi's teacher, Ma Chabes.

The rest of the people are still the same as yesterday.

Quan Moxie looked at Old Man Quan offstage, and always felt that Old Man Quan was a little familiar, but a little unfamiliar.

Quan Mo couldn't tell this feeling, but in the dark, he always felt that this old man would not hurt himself.

Quan Moxie didn't know how this feeling could be, so she could only suppress the doubts in her heart, and planned to go back at night and ask Quan Jiuli what was going on, this old man came to participate in the competition with Quan Jiuyi, maybe she should know what this uncomfortable feeling in her heart was.

The draw results are out, country Z against country F, country M against country C, and country Y against country R.

The first country Z to send out was the brother of the only pair of dragon and phoenix twins among the participating team members - Zhang Jiaming.

And the one who fought against Zhang Jiaming was a man with dyed red hair.

“Since this competition is an academic competition， this competition takes the form of two wins in three games. The two sides decide the winner of the first game in the form of the most traditional rock， paper， scissors， and then the party that loses the stone. It is in the second game. If there is a one-to-one draw， the last game will be officially presented. Note that in this game， everyone can only play once. If they play in the middle， they must change to another representative.

Next， let's get the game on!” (Because this competition is an academic competition, so this competition takes the form of three rounds and two wins, the two sides are determined by the most traditional form of rock-paper-scissors, and then the loser of rock-paper-scissors is in the second game, if there is a one-to-one draw, the last game is officially questioned, note that in this game, each person can only play once, if it is halfway, you must change another representative to the stage.)

Next, let's race, let's start! ）

The scene changed, and when he came to the venue of the game in country Z and country F, there were four large whiteboards on the field, while the red-haired man and Zhang Jiaming were standing on opposite sides.

“Hello， I am Zhang Jiaming， please give me more advice.” (Hello, I'm Zhang Jiaming, please advise.) ）

“Hello， this is lake. Please give me some advice.” (Hello, I'm Lake, please advise.) ）

The two began to rock-paper-scissors, and to be honest, at such a moment, this place, rock-paper-scissors, is indeed a bit shameful.

There was some surprise, Zhang Jiaming lost, Lake won the first bat, and Lake wrote the question on the whiteboard prepared by the official.

The topic is relatively simple compared to these top students:

The moving circle of points A(-√2,0), B(√2,0) intersects M with the Y axis. N two points, C (-1,0), D (1,0) are two points on the X axis, and the line MC and ND intersect at P. Find the equation for the trajectory E of the point P. √ indicates the root number 2. Knowing the sequence An: An=n+1+8/7An+1, and there is an integer K greater than 1, Ak=0, m=1+8/7A1. (1) Use K to represent m (into the most mitigating formula) (2) If m is a positive integer, find the plant 3 of k and m. If the real coefficient equation x2+ax+b=0 for X has two roots, one in the interval (0,1) and the other in the interval (1,3), then the region corresponding to the point (a,b) is S. Let Z=2a-b and find the straightening range of Z. (The title was found from the Internet, but in fact, the author can't understand it.) ）

Zhang Jiaming looked at this question, thought for a few minutes, and glanced at Lake a little speechless: "Dude, you have the nerve to ask that question?)" (Brother, are you embarrassed to come up with this question?) ）

“Don't look down on it. If you don't answer it soon， you won't be able to answer the victory of the first game. Our F country will take it.)" (Don't look down on it, don't answer quickly, can't answer this first game victory, our F country will accept it.)" ）

“Who says I can't answer it? Watch it.” (Who said I couldn't answer, take a good look.) ）

Saying that, Zhang Jiaming quickly wrote the answer on his whiteboard.

Seeing that Lake gradually showed a surprised smile, the smile on the corner of Zhang Jiaming's mouth deepened.

The champion of this game, he won it.