"From the known a+b=ab. and a+b?2ab,∴?ab?ab?2ab, so a+b=ab?4.So (a+b)k=(ab)k?22k.... Therefore, for all n∈N*, the proposition holds. Pen × fun × Pavilion www. ｂｉｑｕｇｅ。 ｉｎｆｏ”

"The diagonal BD midpoint O where the axis is located is MN⊥ BD intersection AD and BC are M and N, and the rotating body obtained by △ABD rotation is two conical ..... with a common bottom surface"

"There are three perpendicular lines in the positive direction to obtain the terminal symmetry of point B, which is ..... at 45 degrees of square angle A"

“△AED∽△ABC，DEBC=AD，AC=|cosα|....”

"Let the triangular equilaterals of a triangle be perpendicular to each other's spirals, and everything will be true...."

"I'm sorry, there are too many solutions to this problem, and the determination of the six situations is more complicated, I can't finish it, can I write it on paper? ....”....

...

The stage of rushing to answer has become Jiang Yin's stage alone.

He didn't know how many questions he had answered, he just waited numbly for the host to finish speaking, then mechanically pressed the answer button, and then let his brain blurt out what he wanted to say.

Sometimes he doesn't even know what he's talking about, but the jumbled XYZ keeps his brain excited, as if he is addicted to it...

.....

In the first game, Jiang Yin grabbed all five questions in seconds, and finally won 5:0 against the University of Toronto, everyone was still ecstatic, celebrating Jiang Yin's dream start.

But when Jiang Yin still won the University of Toronto 5:0 in the second game, everyone's eyes were not full of surprises, but they looked at Jiang Yin with a little weird eyes.

By the time Jiang Yin won Toronto with a crushing attitude of 5:0 in the third game, everyone no longer celebrated, but all stared at Jiang Yin one by one, as if they were looking at an alien, and only Professor Jiang Fang kept answering the phone....

However, the fate of the fourth game was the same, 5:0, and in the fifth, 5:0.....

When the host announced the end of the game and Huaxia University defeated the University of Toronto with a 5-0 sweep, the whole stadium fell silent, and finally there were faint voices of students in the stands.

"Is that person still human.....

"Is it still human? ....”

"Is it a human being...."

"People...."

.....

If Kadavenci had to choose, he would never have come to this place again, for the first time he felt that he had been studying mathematics for more than ten years was a complete waste of time, every time there was a piercing "drip!" When the sound rang in his ears, he felt like the devil was knocking on the door.

And then there's the voice of the devil...

"Proof that if an=bn≠0, i.e., kn-1=-1, or an=bn=0, i.e., kn=1, there is kn+1=0, and an+1 does not exist, so kn≠±1.? Now set kn≠0,1, then y=kn(x-1)+1, and get bn=1-kn....."

The characters and numbers that Kadavenci once loved, the things he once never tired of hearing, now made him want to go crazy like a death curse.

He couldn't understand, he really couldn't understand, and this was really the cruelest punishment in the world for a man who originally claimed to be a genius.

Kadavenci plans to return to China immediately, after returning to China, he plans to give up the study of mathematics again, he wants to study finance, in short, after this competition, he has completely lost the desire to study mathematics....

.......

"Hello? Hello, I'm me, oh, you want to ask Jiang Yin, he has just finished the game now, and he needs to rest, let's make an appointment to talk another day..."

"Hey, yes, yes, but Jiang Yin has just finished the competition now, and he needs to rest, let's rest another day..."

"Hello, soorry, Mr. Jiang really doesn't have time now, he needs to rest...."

Sitting on the way back to the apartment, everyone didn't continue to speak, but Professor Jiang Fang, as the team leader, kept receiving calls from various people.

Jiang Yin felt a little embarrassed, blaming himself for wanting to be majestic for a while, and as a result, he brought so much trouble to Professor Jiang Fang.

Just as Jiang Yin was still hesitating to apologize to Professor Jiang Fang, Chen Peipei, who was sitting next to her, suddenly accidentally touched Jiang Yin, and she was so frightened that she suddenly shrank back.

Jiang Yin couldn't cry or laugh when he saw this scene, "What's the matter, Senior Sister Pepe, I said that I didn't do anything, why are you suddenly so afraid of me, afraid that I will suddenly eat you?" ”

Chen Peipei looked Jiang Yin up and down carefully, and asked cautiously, "Have you always been so powerful?" ”

"How fresh." Jiang Yin shook off the old Beijing accent and amused Chen Peipei all of a sudden, and the atmosphere returned to the cheerfulness when he came.

"Ginger... Senior Brother Jiang, are you so good in junior high and high school? Chen Peipei's big curious eyes blinked, making Jiang Yin want to rub her face.

"Well, this one~" Jiang Yin deliberately hung up his appetite, and sure enough, Cheng Ziang also poked his head over and prepared to listen to Jiang Yin's story, Jiang Yin glanced at Gu Xue and Lei Yu with his residual eyes, and found that the two of them also pricked up their ears and prepared to eavesdrop.

With a smile in his heart, Jiang Yin started his own story.

"Actually, I wasn't so good, I was originally a very ordinary student, ordinary to the point that you can't believe it, with average grades, average character and learning, all kinds of average, and then one day, when I was in math class."

"Math class?" Chen Peipei and Cheng Ziang were both suspicious.

"Yes, the math class in the third year of high school is half a year before the college entrance examination." Jiang Yin said as if it was true or false, "I was in class that day, and then I don't know how to do it, my head seemed to suddenly have a flash of inspiration, and the whole person felt that his spirit had changed, and I found that what the teacher said in class was originally difficult for me to understand, and suddenly I felt that it was easy, and the original formula sentences that I couldn't remember turned out to be like engraved in my mind, and I couldn't forget it." ”

"Is this the same as the old people in our hometown often say that they have opened their minds?" Cheng Ziang asked curiously.

"yes, that's pretty much what it means." Jiang Yin nodded, "Since then, I have begun to become different from ordinary people, I can get the first place in the school every time I take the exam, I like to do other things in class every day, the teacher still cares about me at first, and then I take the first place in the school every time, and the teacher doesn't ask me, I can do whatever I want in school." ”

"That's pretty good." Chen Peipei cast envious eyes, obviously her high school was much darker.

"It turns out that you still have such an ordinary past, I thought you were born to be a demon, just when the game was just played, I sat behind you, watching you read the answer like an endorsement, but it really scared me." Gu Xue, who had been sitting in front of her without speaking, also turned her head at this moment and said with a toothy smile at Jiang Yin.

Jiang Yin bet that this was definitely the first time he had seen Gu Xue, an iceberg beauty, smile toothy, and in an instant, this sense of accomplishment was even stronger than winning the game on the stage.

"Our game today is really unexpected, but the process is a little twisty and turning, but the result is very good, I will invite everyone to eat an American dinner when I go back, it is our celebration banquet!" Professor Jiang Fang, who had been sitting in front of him on the phone, finally put down his mobile phone and promised to the team members in the car.

"Oh! Great! Have a big meal! For a while, the group members were also cheering, and the atmosphere in the car was also very cheerful....

....... (To be continued.) )