Chapter 8: What Medicine Is Sold in Gourds?

Tong Hao raised his eyes and looked at the boy in front of him, "I know." ”

The boy felt that something was wrong with Tong Hao, so he stopped for about a minute and chose to leave. After the boy left, Tong Hao thought for a while, and finally chose to continue reading.

Most of the reason why Tong Hao is malnourished is because he spends his living expenses on playing games and clubbing, and his three meals a day can only be replaced by instant noodles. Since Tong Hao was now reborn here, he would never allow such a thing to happen.

The evening came as promised. Shenghua Middle School's evening self-study adopts the principle of voluntary self-study, as long as you do not affect the learning of other students in school, you can stay in school.

Tong Hao, who has never attended evening self-study, easily attracted the attention of others.

"Tong Hao, are you going to stay in school for evening self-study?" The classmate in front of Tong Hao turned around and asked Tong Hao.

"Hmm. Tong Hao didn't want to waste too much of his time.

Tong Hao and Geng Wan'er found a corner and started the "world of two".

"Wan'er, I feel that I still have some problems with mathematics, can you help me solve them?" Tong Hao asked Geng Wan'er straight to the point.

"I'll do my best. "Tong Hao's achievements Geng Wan'er knows. She had also thought about helping Tong Hao with tutoring before, but Tong Hao refused, this time Tong Hao took the initiative to find Geng Wan'er tutoring, she would naturally know everything, and she would say everything.

"Wan'er, look at this function question, it seems to be an abstract function. Tong Hao pointed to a multiple-choice question on the test paper.

Geng Wan'er looked at it for a while, "This is indeed the topic of abstract functions. There are two ways to deal with multiple-choice questions. The easiest way is to substitute special values, and general multiple-choice questions should be solved. You see, this problem can be solved with a special value method. First let x=0, then ......" and soon the correct answer to the multiple-choice question will be obtained.

After Geng Wan'er finished talking about this method, Tong Hao remembered this method with the ability to never forget.

"What's the second way?"

"First let's look at the definition domain of this abstract function, and then use the parity of the function to ......" Five minutes later, the notebook in front of Tong Hao had been filled with Geng Wan'er's problem-solving process.

Geng Waner's handwriting is neat, and the problem-solving process is clear at a glance. Geng Wan'er has tried her best to say it in an easy-to-understand manner. "Do you understand me when I say that?"

"It's not a big problem. Let's move on to the next question. ”

"Don't you need time to digest?"

"I've memorized how to solve this kind of problem. ”

"Oh well. "Individual. Although Geng Wan'er was surprised, she couldn't refuse when she saw Tong Hao's confident appearance.

"Let's look at question 13,......"

"Ding...... The system task is published. Ask the host to make one of their own. Geng Wan'er's math problems. Successful missions reward fighting skills. ”

"Martial arts, this is really good for self-defense!" Tong Hao is still anxious about Brother Ye's affairs, with martial arts, all problems can be solved, and ensuring his own safety is still the first priority. But it is not easy to stump Geng Wan'er.

"Wan'er, shall I give you a debut question?" After all, there are differences in the knowledge of the two worlds.

"Give me a question?" Geng Wan'er was a little confused.

"Hmm. I saw a difficult problem in a book and wanted to see if you could solve it?"

"I'll try. Geng Wan'er didn't know what kind of medicine was sold in Tong Hao's gourd.

Tong Hao has now basically browsed all the knowledge of high school mathematics in this world, and found that this world has very little explanation of trigonometric functions, perhaps this can successfully complete the task of system release.

Tong Hao casually drew a triangle on the paper, and gave certain side lengths and angles, asking Geng Wan'er to find the perimeter of the triangle.

"Wan'er, what do you think of this question?

After seeing the title, Geng Wan'er looked embarrassed, she really hadn't seen such a strange topic, and even Tong Hao's side chief Geng Wan'er didn't know it. Geng Wan'er had only seen this kind of symbol in the library, but that didn't mean she would have such a title.

"I won't. Geng Wan'er replied honestly.

While Geng Wan'er spoke, a voice came to Tong Hao's brain: "Congratulations to the host, the task is complete, and the fighting technique has been obtained." Tong Hao instantly felt that he was full of strength.

"How did you come up with such a strange problem?" Geng Wan'er had only seen such an irrational number, but she had never seen a problem that combined it with the knowledge of triangles.

"I stumbled upon it in a book. ”

Geng Wan'er didn't expect that Tong Hao had just been home for two days, and such a big change had happened.

What kind of experience did Tong Hao have in the past two days?

A simple trigonometric problem on earth has become a super problem here, and it would be a fantasy to let your classmates hear it!

This topic was quickly skipped, and Geng Wan'er told Tong Hao about the solution ideas and methods of other questions, and Tong Hao wrote them down one by one.

Time passed quickly, except for a few students who were quietly discussing and studying, the other students were quietly reading and doing questions, but a powerful voice broke the sky and broke the peace.

"Tong Hao!" "Who else could it be if it wasn't Li Lei?" I saw Li Lei walk into the classroom angrily. Geng Wan'er refused his invitation and was actually with this waste wood scumbag, how could he not be angry?

Tong Hao raised his head unhurriedly, now Tong Hao, who has martial arts skills, is not a piece of cake to deal with Li Lei.

"Is there something wrong?" Tong Hao's tone did not hear a trace of panic. On the contrary, Geng Wan'er next to her looked at Li Lei with a solemn expression.

"You actually touched my woman?" Li Lei's tone was full of arrogance, as if Geng Wan'er was his appendage.

"Your woman?" Tong Hao glanced at Li Lei with interest.

"Don't talk nonsense! I'm asking you!" Tong Hao's reaction today completely exceeded Li Lei's expectations, why was Tong Hao, who is usually cowardly, not afraid at all today?

"Why should I answer you?" even Geng Wan'er was shocked when these words came out, not to mention the other students in the classroom.

"You asked for it!" Li Lei rushed to Tong Hao's side with a brisk step, and hit Tong Hao in the stomach with a fist.

Everyone present knows that one of Li Lei's talents is sports, and Tong Hao will inevitably be beaten this time.

Although Li Lei's speed surprised Tong Hao, Tong Hao is no longer what it used to be. The side of his body easily dodged Li Lei's punch.

"How dare you dodge?" Li Lei looked at Tong Hao in surprise, but this aroused Li Lei's anger even more.

"If I don't hide, will I stand and let you fight?" Tong Hao is not a fool, of course someone beats him and he must dodge as soon as possible, safety always comes first.