Xueba couples do not study

No.48 in Chapter 1, He Yang of High A.

"The test paper and answer sheet will be issued by the referee."

There are only four short questions, but the blank space is terribly long.

"Now the players are asked to start answering the questions."

The first line of the first page of the test paper is marked: No. 12 individual paper for the Four Schools League.

The test time is 120 minutes and the total score is 100 points.

第一题：已经a，b为实数，a＞2，函数f（x）=|lnx-a/x|+b（x＞0）。若f（1）=e+1，f（2）=e2-ln2+1。

(1) Find real numbers a, b;

(2) Find the monotone interval of the function f(x);

(3) If the real numbers c and d satisfy c>b, cd=1, verify: f(c)<f(d)

The first question is relatively simple.

After reading the first question, He Yang already had a rough idea for solving the problem.

The test point of this question is to use reciprocals to study Han Jiu's monotonicity and the application of piecewise functions.

This question has been solved in 15 minutes, and then look at the next question.

The arena was very quiet, and the sound of rubbing paper and pens seemed to tell others the passion in the arena.

He Yang was wrong, the person Lin Sheng was looking at at that time was not Ye Xuan, but him.

From beginning to end, there was only him.

Even now, Lin Sheng only has He Yang in his eyes.

Liu Zixin regretted that she had just glanced at Lin Sheng, she never expected that Lin Sheng would look at someone in the arena and start to giggle.After being eaten dog food again, she decided to change seats with a friend next to her to avoid being eaten dog food again.

Ye Xuan, who had been stared at by He Yang before, decided that he wanted to win the individual competition this time, so that the arrogant little characters in the first year of high school and those in the high A level would be discouraged, and he would open his eyes to see who is the winner. time winner.

And if you can get the first place, you can also associate with school girls.

The corners of Ye Xuan's mouth raised when he thought of this, and when he was a little distracted, he heard the commentator say: "It's been 10 minutes of the game now, I don't know how everyone is doing. I heard that this time the questions are a bit difficult."

"In the past, the four school leagues have been difficult, and this time it is no surprise."

Damn, it's been 10 minutes and I haven't finished solving the first question yet, so I need to speed up.

Ye Xuan said that he couldn't help being the first in the individual competition, but also the fastest in solving problems.

He wants everyone to see who is number one in the league!

There is no clock in the gymnasium, and the players all rely on the commentator to remind them at regular intervals.

"The time for the individual competition has passed halfway, all players are requested to allocate their time reasonably."

"Hey, are you still going to bet now?" The girl who bet with Lin Sheng in the morning looked back at her, pointed in He Yang's direction, and said, "His team competition was just a fluke, and you will lose the individual competition this time." .”

The implication is to throw in the towel, don't waste money.

"Bet, I'll still bet on He Yang who is high A." ​​Lin Sheng said to her with a smile.

The betting girl whispered that you are bound to lose, then turned her head and looked into the arena.

It is not certain who will win and who will lose, the winner must be He Yang.

"The individual competition time has entered the countdown, and there are still 10 minutes left."

He Yang had already finished writing at this time. After checking the questions on the test paper with a pen, he let out a sigh of relief and looked up at the referee.

"It seems that contestant He Yang has finished writing. He really deserves to be a dark horse."

After hearing the commentator's words, Ye Xuan used his right hand holding the pen to draw a small black line on the test paper.

After 5 minutes, Ye Xuan raised his head.

"Contestant Ye Xuan has also finished."

5 minutes short.Ye Xuan thought to himself.

"The individual competition has entered the countdown, the last 10 minutes, the last 10 minutes, please pay attention to the players."

After hearing the narrator's words, the others wrote faster, as if they were racing against time.

"The last minute."

After 1 minute, the referee blows his whistle.

Narrator: "Time is up, candidates please put down your pens and stop answering questions."

The test papers were collected, and He Yang and the others sat in their seats and waited for the results of the test papers.When the people in the audience saw the marking teacher, they prayed that the first place in the competition would be someone from their school.

There are a total of four marking teachers, and the marking speed is very fast, and the marking is completed in 10 minutes.

In the past 10 minutes, except for He Yang and Lin Sheng, everyone in the arena counted seconds like years.

For the sake of fairness, the candidates' names were covered during marking, and the top one was the champion of this competition.

After sorting it out, one of the marking teachers said, "Hey, I'm going to broadcast the results of the four-school individual competition."

Apart from his voice, there was no other sound in the gymnasium, and everyone listened intently with bated breath.

"No.1, He Yang with high A."

　Welcome to eat.Because in the previous chapter, someone said that I was hydrology, but it was not. That article was written in that way to reflect Lin Sheng's academic aura.So this time I wrote down the questions and test sites, don't say I'm dumb.Reader group number (qq group): 1050344939
　　
　
(End of this chapter)