Pei Qi stood up slowly, and replied without changing his face: "I'm studying academic issues." ”

One sentence made the audience laugh.

The faces of the few people who had just been scolded turned even darker.

The head teacher's face also darkened, "What about class, what academic problems are you studying!" ”

"Discuss treatment options for psychosis." Pei Qi replied calmly, "Mental illness is a mental health problem, and the main treatment methods include self-help measures, medication and psychotherapy. ”

The head teacher's face darkened, "Come up and write the answer to this big question!" ”

If you still can't write the steps well, just wait for the homework of adding!

Pei Qi was helpless.

Yu Zhi was stunned, watching Pei Qi walk onto the podium, and felt that Pei Qi was really easy to carry it!

With so many people talking, the teacher pointed to Pei Qi by name.

And it's also Pei Qi's big topic.

She had seen Pei Qi's answer to the big question just now, if Pei Qi wrote the same on the blackboard for a while, it would be over......

Pei Qi looked at the chalk, silently picked it up, and raised his hand to write down the process of solving the problem.

Untie:

Let A(x1,y1)B(x2,y2), from the meaning of the subject y1 0.

(1) The equation for the straight line l is y=√3(x-c), where c=√(a2-b2).

Py=√3(x-c),x2\/a2+y2\/b2=1

Obtain: (3a2+b2)y2+2√3b2cy-3b4=0

Solution: y1=[-√3b2(c+2a)]/(3a2+b2)

y2=［-√3b2（c-2a）］／（3a2+b2）

Because AF=2FB, -y1=2y2

i.e. [√3b2(c+2a)]/(3a2+b2)=2[-√3b2(c-2a)]/(3a2+b2)

e=c／a=2\/3

(2) Because AB=√(1+1\/3)|y2-y1|, 2\/√3·4√3ab2/3a2+b2=15\/4.

From c/a=2\/3 to get b=√5\/3a, so 5a\/4=15\/4, to get a=3, b=√5.

The equation for ellipse c is x2\/9+y2\/5=1

Complete.

Pei Qi threw the chalk into the chalk box in a handsome gesture.

A series of operations stunned everyone.

Pei Qi...... Really?

The person who had just mocked Pei Qi was so choked that he couldn't speak.

Isn't Pei Qi a scumbag?

Could it be that Pei Qi is a top student in that video?

Oh, my God! Is it really disdainful of test scores?

Is anyone really that diao?

Is there really a school bully who usually likes to pretend to be a scumbag?

The head teacher looked at everyone with stunned expressions and was a little proud.

These children are not stable at all, and this little thing is surprising like this! I still need to learn and exercise!

And Pei Qi, this kid, deliberately scribbled a few key steps before, right? If he hadn't been educated, I'm afraid he wouldn't have written specific steps this time, right? It really is! It really is! Mrs. is too much! If he doesn't arrange a few more papers, he feels sorry for himself!

Pei Qi walked off the podium with everyone's surprised expressions, without the pride of solving the problem, no sadness or joy.

"! I won't do that! Pei Qi did it right? ”

"He shouldn't have written down Yu Zhi's answer, right?"

"Didn't Yu Zhi do this wrong?"

"And he...... Really...... Scholar? ”

……

The more Yu Zhi looked at Pei Qi, the more handsome Pei Qi became, and there were stars in his eyes.

The little white cat actor looked at Yu Zhi's expression, and the cat's pupils narrowed slightly, why did he feel a little annoying?

found a place where there was no one, and the actor gradually showed the outline of a person.

The man walked out slowly with his white hair, his amber cat eyes crystal clear.

I'm going to find Xiao Qiqi.

When the man saw that he had been away from home for a long time and had not returned home, he almost thought that he was being locked up in another laboratory, and finally found him, who was chatting with someone who looked a little annoying.

It's a little annoying!