Zhang Yujie was stunned.

Isn't giving a small report to a teacher something that elementary school students do? Would a high school student with a slight face do this kind of thing?

As it turns out, it really will.

Pei Qi made a phone call in front of him, and he also turned on the amplification.

Zhang Yujie clearly heard the teacher's confused voice, "Affect your learning?" ”

"Hmm." Pei Qi nodded solemnly.

Yu Zhi was stunned, Zhang Yujie was stunned, and everyone present was stunned.

What about a good fight? Is it so shameless to call the teacher?

The teacher on the other end of the phone was obviously stunned, high school students are more face-saving now, and he hasn't encountered something that elementary school students can do like making a small report.

Moreover, Pei Qi wants to learn?

It's better to tell him that the sow is up the tree.

Zhang Yujie dropped a sentence of "don't leave after school" and slipped away.

Pei Qi calmly picked up the book and swam in the ocean of mathematics, Yu Zhi and the friends around him were stunned.

There were also students who were holding mobile phones to record the video and were stunned in place, and they didn't notice until the head teacher approached.

"Hand over the phone." The head teacher quietly appeared behind the two.

The two of them looked at each other, wanting to cry without tears.

As for why he didn't accept Pei Qi's mobile phone, the head teacher had already given up, and he had nothing to say about this loser who accepted a mobile phone and bought a new mobile phone.

As for the study he just said on the phone, he took it as a joke.

Walking to Pei Qi's desk, he was ready to turn a blind eye to Pei Qi's game, but when he looked closely, he was actually doing a math problem?

The head teacher stopped and recalled the video that had recently spread on the Internet, could it be that there was really some miracle?

Pei Qi was doing a test paper at this time, which he sent yesterday, and the overall difficulty was moderate.

Send a sub-question, another sub-question, still a sub-question, send a sub-question, send a point, send a point, send a point, send a point, send a point......

There are twelve multiple-choice questions and four fill-in-the-blank questions, Pei Qi's speed is as fast as if he is doing it randomly, but the more he looks at it, the more frightened he becomes, all right.

It can't be luck, right? Is anyone really lucky enough to get all the twelve choices and fill in the blanks right?

If the sum of the first n terms of the sequence {an} is sn, and an+2snsn-1=0(n≥2), a1=1\/2.

(1) Verify that {1\/sn} is a series of equal differences.

(2) Find the general term formula for the sequence {an}.

Pei Qi wrote "proof" on the answer sheet according to the format.

1\/sn-1／sn-1=2

Therefore, it was established.

Two rows, no more steps.

It's so simple and clear that it couldn't be simpler, and the head teacher gasped, is that how he usually teaches?

Is that how the steps are written?

Didn't you say that you can't score points if you write like this?

Pei Qi is still continuing, and the second question is even simpler, write down the answer directly, and fight for the next question.

Homeroom Teacher: "......"

Three-dimensional geometry question, the head teacher watched Pei Qi finish writing the proof steps in two rows, and wrote the answer to the second question in one row, and almost spit out a mouthful of old blood.

The problem of probability continues, the use of hypergeometric distribution, 2 people are randomly selected from the representatives of the first and second high school students who participated in the survey, and X represents the number of representatives of the first year of high school, and the distribution column of X is obtained.

After reading the question stem, write the steps in two rows.

The head teacher's face became darker and darker, and the air pressure around him became lower and lower.

Pei Qi still didn't stop, and in a few minutes he overcame the analytic geometry problem and derivative problem that overwhelmed many high school students.

I don't know whether to be angry or happy.

"Pei Qi, come with me to the office!"