113: There is no solution to this question
When Teacher Hu Jun talked about the "dark horse", Mao Nan gave Zhou Luoxia a thumbs up.
So, Hu Jun immediately shook his head: "Mao Nanguo, no wonder your math scores are so poor, it turns out that you have a problem with your comprehension." Do you think Zhou Luoxia is a dark horse? Which math test did she not take the first place in the class?"
Mao Nan smiled: "Teacher, I know that she is not a dark horse, she is the white swan of our class." ”
All Girls (>_<)
Little Pepper couldn't help but complain: "Mao Nan, you're really greasy." ”
Mao Nan: "........."
Teacher Hu Jun continued: "This time, we have a total of two dark horses. First of all, I would like to praise Mr. He Qihao. ”
As soon as he heard the words "He Qihao", the whole class immediately froze.
"He Qihao, this time he scored 135 points in the mathematics test, second in the class, second only to Zhou Luoxia. As he spoke, Teacher Hu Jun looked at the porcupine again: "If I'm not mistaken, you only scored 118 points in the last math test, right?"
There was a light in the excited eyes of the porcupine, and he nodded heavily, "Yes, teacher, you have a really good memory." ”
Hu Jun nodded: "Classmate He Qihao, you have made great progress, I hope you continue to work hard!"
"Well, teacher, I'll do my best!"
The porcupine holds its head high and has an arrogance index of five stars.
Mao Nan next to him couldn't help but "cut": "Porcupine, hurry up and cover your ink bottle, be careful that after you float up, you will spill the ink on the ground." ”
The porcupine gave him a blank look: "Lao Tzu is floating, do you care?"
.........
"Actually, the biggest improvement in our class this time is not He Qihao. ”
Speaking of this, Mr. Hu Jun set his eyes on Kong Shucheng in the back row: "Kong Shucheng, if I remember correctly, you only scored 75 points in mathematics in the last test, right? Guess what, how many points did he score this time?"
Mao Nan was the first to raise his hand: "90 points." ”
Hu Jun shook his head.
Guan Haolin: "110 points." ”
Hu Jun shook his head again.
Liu Ming: "Teacher, I know, 74 points." ”
Hu Jun glared at him: "Liu Ming, if you say it again, get out of here!"
Liu Ming: "........."
Hu Jun: "Liu Ming, Liu Ming, you and Kong Shucheng are at the same table, why can he improve from 75 points to 125 points in just over a month, but you are getting worse and worse in the exam?"
As soon as the words fell, I only heard a "clang" in the front row.
The bottle of carbon ink on the porcupine's table fell to the floor.
Ink splatters, glass splatters.
Everyone followed the prestige, and saw that the whole face of the porcupine was black, like ink on the ground.
Hu Jun felt that something was wrong: "He Qihao, are you fine, how could you be so careless?"
"Teacher, I, I, I'm sorry!"
"Why is your face so ugly?"
"Teacher, I'm dizzy, I want to throw up!"
"Oh, are you sick? In that case, what about ...... You can go back to your dorm room and take a break. ”
"Thank you, teacher!"
The porcupine did not finish cleaning the ink from the ground and left. Mao Nan looked at the pool of ink on the ground, and laughed softly: "Hehe, if you can't afford to lose, you can't afford to lose, what kind of ink attack are you playing?"
The class laughed.
..................
The porcupine walked away.
Teacher Hu Jun didn't know what was going on, but the entire class 8 of the second year of high school knew that the porcupine was actually just like Mao Nan said - "can't afford to lose". For porcupines, Kong Shucheng's score of 125 points was like a bolt from the blue.
Not only was the porcupine shocked, but the whole class was shocked except for Zhou Luoxia.
"Damn, Ah Cheng is such a shang, why is he so crazy about math? 125 points?
"Yes. I began to wonder if he was pretending to be a pig and eating a tiger before? In less than two months, he was able to improve his math by 50 points? Was he empowered by Zu Chongzhi?"
"Alright, don't lemons. The fact that Ah Cheng can get such a high score is completely rewarded by God. You don't want to think about it, during this time, in addition to eating, and doing tai chi, they are brushing up on questions almost every minute, and even dreaming are trigonometry functions and inequalities. ”
"Ah Cheng is so awesome, I always feel that this wave of porcupines is going to be cool. If Ah Cheng can get the first place in mathematics in the joint examination of the nine schools, the porcupine should get out of our class, I look forward to it. ”
"You think too much, porcupines won't be cold, Kong Shucheng will be cold. In the joint examination of nine schools, I want to take the first place in mathematics, and the difficulty is about the same as that of Mao Nange to win Zhou Luoxia. ”
"Hey, brother, when you say this, my brother Mao Nan really doesn't like to hear it, aren't you provoking the brotherly friendship between me and Ah Cheng........."
.........
The originally quiet classroom became a vegetable market in an instant.
Soon, the test papers were distributed.
After Hu Jun explained some basic questions, he began to talk about the last question of the test paper.
At the same time, Kong Shucheng finally started his first wave of "small tests" after receiving the "C-level quick calculation master" rewarded by the system. He is going to take this trigonometric problem to open the meat.
The topics are as follows:
[As shown in the figure JPEG, there are two islands A and B in the sea, in order to measure the distance between them, ∠AEP=60°,∠BEQ=45° is measured at point E on the coastline PQ; ∠AFP=45°, ∠BFQ=80°, EF=2km.(1) Judge the quantitative relationship between AB and AE and explain the reason;(2) Find the distance between the two islands A and B (the root number is retained for the result)]
.........
On the podium, Teacher Hu Jun knocked on the blackboard and said seriously: "The last question, Zhou Luoxia is the only one in the class who has done it right, so you have to listen carefully." Regarding this first question, it is relatively simple, to find the quantitative relationship between AB and AE, we can prove △AEF≌△ABF according to SAS, and get AB=AE......... The most important thing is actually this second question........."
Teacher Hu Jun spat and said a lot.
The students listened one by one.........
Suddenly, Kong Shucheng, who was sitting in the back row, raised his hand.
Hu Jun glanced at him: "Kong Shucheng, what's wrong with you?"
Kong Shucheng: "Teacher, I think the second question is actually unsolvable. ”
Hu Jun: ".........?"
Everyone: ".........?"
Everyone focused their eyes on Kong Shucheng in unison.
Hu Jun frowned: "Kong Shucheng, are you unsolvable, or is this problem unsolvable? Since there is no solution, why can Zhou Luoxia make it?"
"Teacher, this question is really unsolvable, I just calculated it again. Zhou Luoxia can solve it, unless her volume is different from ours. ”
"Nonsense, how can the volume be different? Why don't you say that people's brains are different from yours?"
As soon as this remark came out, the whole class laughed.
Then, Hu Jun began to regain his serious expression: "Classmate Kong Shucheng, the teacher praised you just now, don't be too floating." Hurry up and sit down, if you have any questions, come back to me alone after class. ”
“.........”
Kong Shucheng didn't speak again, so he had to sit down obediently.
But even so, his heart is still surging. I have to say that the "C-level quick calculation master" just harvested in the system is indeed too strong.
Take the last question. Kong Shucheng deduced the correct answer in just one minute.
The correct answer is: there is no solution to this problem!
Or rather, the question stem itself is wrong!
According to his calculation just now, the ∠BFQ in the problem stem must = 90° in order for this problem to be solved.
However, it is clearly written on the question stem, ∠BFQ=80°.
Why is Zhou Luoxia's answer correct?
Is it just because ......... She's good-looking?
..................