Top Student Don’t Need Superpowers

"Cough cough cough!"

Seeing Koga Weihua tilting her head and looking curiously, Gu Qiao Wennai hurriedly coughed and interrupted, her pretty face quickly filled with a bright red color: "It's just a common cold. I will go home and take some cold medicine at night!"

There are also outsiders. You must keep the matter of meeting your parents at Asakawa’s home in a secret, and don’t say a word!

"Asakawa-san, how do you solve this problem?" In order to avoid Rin's entanglement, Fumino Furuhashi hurriedly moved his butt and approached Naoki Asakawa, holding the exercise book in his hand, and said quickly, "The problems of trigonometric functions are so difficult. Symmetry, parity, and messy formulas make me dizzy every time I see it, and I don't understand it at all."

It is clearly written in the textbook that trigonometric functions are one of the basic elementary functions, which belong to the basic knowledge [can be mastered and should be mastered]. Why are so many people unable to learn it!

Naoki Asakawa turned the pencil at his fingertips, pondered for a moment, and finally thought of a teaching method that would make it possible for Furuhashi to understand, his voice was low, and he spoke slowly:

"It was a sunny morning, and a murder case suddenly happened in the function town of the kingdom of mathematics..."

"Huh? Murder case?"

Gu Qiao Wen Nai was shocked, straightened up and looked nervously.

"The police were at a loss for this homicide, so they invited a famous detective, Mr. Guqiao, who was wearing a black trench coat, a top hat, a pipe, and a stick to help solve the case."

"Wh, what." Guqiao Wennai raised his hand to cover his cheek, and said ashamed, "Famous detective, I can only be considered a third-rate detective, right?"

You are so embarrassed to say!You can't even learn basic trigonometric functions. Once you encounter a mathematical puzzle in the process of solving a case, you will be eliminated instantly!Not to mention third-rate detectives, your current level is not even a detective assistant, Watson can still find clues for Holmes, except for your blank eyes, following the cuteness, you only have the role of snack destroyer!

Asakawa Naoki continued: "The famous detective Guqiao bit his pipe and walked into the victim's house."

"I don't know how to bite a pipe." Guqiao Wennai whispered, "Smoking is harmful to health, and I hate the smell of cigarettes the most. Don't smoke anymore..."

"what?"

"No, nothing." Guqiao Wennai covered her pink lips with her right hand, her eyes erratic and said, "Asakawa-san continued."

"Walking into the house, the famous detective Guqiao quickly made the first discovery. The dome of the victim's room was actually circular."

Naoki Asakawa took the draft paper and drew a semicircle on the paper.

"The dome?" Guqiao Wennai blinked and asked curiously, "Is it a hobbit?"

The graphical curves of all trigonometric functions are very smooth. Compared with the scrawny hobbit, the round dwarf fits the image better!

"Don't talk, keep listening." Asakawa Naoki looked serious. "You are a detective now, with the mission of finding the murderer and redressing the victims. Don't jump to conclusions casually. That will make the murderer get away with it. "

"understood."

Fumino Furuhashi pursed his beautiful lip line, opened his eyes and continued to listen to Naoki Asakawa's story.

"In addition to the dome, there is also a hanging movie screen in the room..."

Naoki Asakawa drew a line perpendicular to the ground on the ellipse with a pen, "This is the movie screen."

Then I drew a point in the middle of the bottom line, "You stand in the middle of the room and look to the top of the movie screen. This line is your line of sight."

Naoki Asakawa connected the dots and lines on the paper, quickly drew a triangle, turned his head to look at Fumino Furuhashi, "The so-called sine function is the ratio of the distance between this movie screen and you."

"The farther away you are, the smaller the screen will be, and the closer you are, the bigger the screen will be." Naoki Asakawa turned the pencil at his fingertips, wrote down the basic formula of the sine function, turned his head to look at Furuhashi, and asked questions. When will the screen be the largest?"

"Well, that..." Guqiao Wennai stretched out a scallion white jade finger, ran across the paper, and hesitated, "When it hangs from the middle of the roof?"

"Very good, the answer is correct." Asakawa Naoki nodded slightly, "Congratulations to the famous detective Guqiao for finding the first clue."

"It's all the credit of Asakawa, it has nothing to do with me."

Saying this, the corners of the pink lips of this literary girl clearly outline a happy arc upwards.

In a sense, girls and pets need to be rewarded from time to time, and there is no doubt that the same is true for Asakawa.

Naoki Asakawa continued, "When the movie screen was the largest, how close was your line of sight?"

"It's ninety degrees."

Gu Qiao Wennai quickly said, "This kind of problem still can't trouble me."

"The answer is correct. Congratulations to His Royal Highness Guqiao for finding the second clue. This is the best value of the sine function."

Naoki Asakawa picked up a pencil with his fingertips and drew a plane coordinate axis with the ancient bridge as the center. "After careful observation, the famous detective ancient bridge found that there is an identical semicircular building and movie screen underground, because it is upside down. Look, so it's a negative angle..."

Naoki Asakawa drew the standard graph curve of the sine function on paper and continued to ask: "What degree should it be here?"

"That one……"

Guqiao Wennai hesitated and whispered, "Is it ninety degrees?"

"When it's zero?"

"One hundred and eighty degrees."

"Very good, all the answers are correct." Naoki Asakawa marked the degrees corresponding to the maximum and minimum values ​​of the function curve on the image, and finally concluded, "The sine function is the size of the movie screen at home."

"For the same reason, the cosine function is the distance between the movie screen and you..."

"I understood."

Fumina Guhashi tilted his head and looked at me, and his pretty face was full of me curious: "But Asakawa hasn't said why the victim was murdered?"

Chapter 350 The Girl's Final Fear

Naoki Asakawa crossed his fingers and continued:

"Ms. Detective Guqiao frowned and found a clue again..."

"I didn't frown."

Gu Qiao Wen Nai whispered.

"The plot needs it, don't worry about that much." Asakawa cleared his throat and continued to read, "Looking up, it turned out that there was a skylight on the dome. The famous detective Guqiao intuitively felt that this skylight was weird. , So stepped up the ladder to push the skylight open, and then saw..."

"What do you see?"

Fumina Guqiao became a little nervous, and whispered, "A clue left by the murderer?"

Seeing Naoki Asakawa turning his head and looking, Fumina Fumina Furuhashi blushed slightly, and he stubbornly said: "There are similar plots in detective novels. After criminals commit crimes, they leave clues to provoke, and the detectives struggled with wit Yong, finally bring the other party to justice..."

"I'm sorry, but the answer was wrong." Asakawa Naoki said blankly.

"Wrong, wrong?"

Fumina Guqiao suddenly came down.

"The famous detective Guqiao took a closer look. It turned out that outside the window was a high wall with no end in sight. A huge movie screen was hung on the wall."