They Gather Here

A spoonful is a spoonful.

Luo Zhen took a spoon and took a shallow taste.

When the milk came into contact with the taste buds, he suddenly realized the secret recipe of Yukinoshita.

"Under the snow, you added mint flavored white rabbit toffee?" he asked.

How did you taste it all at once?

Really boring.

In terms of culinary skills, Yukinoshita has no desire to win against Luo Zhen, but he is still a bit unwilling to be exposed so easily.

She nodded slightly.

Luo Zhen could guess the girl's thoughts, so he showed a smile: "If it's hot milk, you melt the sugar, there's probably only one person I know who can recognize it immediately."

Of course Yukinoshita understands this.

Also, if heated, the mint flavor will be stronger.

But for Nakano May now, iced milk is more beneficial.

Yukinoshita nodded to her exercise book and said, "If I remember correctly, there should be a second question, right?"

Although it was a question, the tone was very certain.

Nakano Wuyue looked at the exercise book in front of her.

----------

a, b, c are real numbers, consider the solutions of the three equations in the complex plane:

(1) When the first two equations have no real number solutions, prove that their four solutions are either on the same circle or on the same line, and use a, b to indicate the center and radius of the circle.

(2) Find: the necessary and sufficient conditions for the three equations to have no integer solutions and six solutions to share a circle.

----------

Nakano May was lost in thought.

Although her math grades are extremely bad, but she knows some answering skills——

For this kind of answer questions with multiple sub-problems, each sub-problem should be related.

So……

What did Chitanda just say?

Veda's theorem → real axis symmetry → isosceles trapezoid → cocircles.

Obviously, the second question is also related to circles.

From the first question, the center of the circle shared by the latter two equations is 1/(bc), so the necessary and sufficient condition for the coincidence of the two centers is a+c=2b?

Is that right?

Is it really that simple?

If it was the past, Nakano Wuyue would definitely feel that he gave the wrong answer, but today he has the opposite premonition.

She told Chitanda the answer in her heart.

Chitanda was surprised when she heard that the other party asked her for confirmation instead of Yukinoshita or Sawamura-senpai.

But she quickly adjusted her mentality and replied: "Senior can already get 80% of the score of this question, and then consider the two situations of no real solution and non-collinearity, which can be solved perfectly."

Nakano Wuyue let out a long sigh of relief.

She turned her gaze back to the walnut milk, thoughtful.

Mint used as a drink can relieve brain fatigue and reduce stress.

What's more, it has a cool smell, combined with cooler iced milk, it has a strong penetrating power, which can make people feel comfortable and improve the state of sluggishness.

It turned out to be the case.

Nakano Wuyue pushed the pen and paper aside, drank the walnut milk in one breath, leaving only residue.

Then, she raised her head and happened to meet Yukinoshita's eyes.

They both looked away at the same time.

These two are arrogant!

Luo Zhen laughed directly.

"Sorry!" He turned his head to one side, coughing to suppress his smile, "I'm sorry, I couldn't hold back."

"Hmph—" Yukinoshita raised her nose.

She is obviously a gentle girl, but she has to behave like this.

What a contradiction.

Luo Zhen suddenly thought of the "Serving Department" that Shizuka Hiratsuka had mentioned, and couldn't help but sigh in his heart. The teacher is worthy of being a teacher, and he can see the essence of a person at a glance.

There is no doubt that Yukinoshita is a girl who will lend a helping hand to others.

This can be perfectly seen from her helping Totsuka Ayaka and Nakano Mayzuki.

Luo Zhen suddenly had a flash of inspiration.

"Under the snow, let's help Nakano with homework?" He excitedly suggested.

"Hey?" in unison x4.

Even Ying Lili, who had been revising the line draft just now, raised her head.

It seems that this girl was also listening just now.

Luo Zhen pondered for a moment, and said: "Let's take it as a thank you to Nakano. She helped us during Golden Week, and now she added a drink to our menu, which is a great achievement..."

"Wait!" Nakano Wuyue interrupted him, "What menu?"

Luo Zhen then introduced the community activities of the neighborhood committee.

Following his description, Nakano Wuyue couldn't help but imagine.

----------

Fantastic drink: walnut milk!

Health, intelligence, brain, anti-dementia...

Recommended by Nakano May!

----------

It's too shameful.

"No! Absolutely not!!!" The girl shook her head crazily, and the stupid hair on her head swayed accordingly, "Are you taking me for an idiot?"

Luo Zhen looked at her with a "Don't you?" expression on his face.

Nakano is very angry in May.

She pushed back the stool with a bang, left the bar and walked towards the door, her face was puffy like a meat bun.

however……

"Gululu~" Someone's stomach growled softly.

Luo Zhen held back his smile, returned to the stove, and shouted like an ordinary izakaya owner: "Hey, one Mapo Tofu Donburi, it will be served within fifteen minutes!"

Nakano sat down again in May.

Author's message:

￥￥￥￥￥￥￥￥￥￥￥￥￥

PS:

Why are only the scumbags studying in my novels?

Emmmm......

Chapter 9 Tutoring and Dry Pot Tea Tree Mushroom

The next day, Saturday.

Luo Zhen still got up early, because Nakano Wuyue was coming to receive extracurricular tutoring.

Except for Megumi Kato, who has mediocre grades, the neighborhood committee is a veritable group of top students, so even Chitanda can tutor a certain second grader.

However, this job finally fell on Luo Zhen's head.

Reason: "You have the best grades."

It is justifiable and irrefutable.

On the contrary, there is an additional condition, that is, another member of the society must be present.

The reason: "You can't be alone with girls."

Regarding this point, Luo Zhen expressed dissatisfaction, but Yukinoshita dismissed it lightly with the sentence "You are not afraid of the shadow when you are upright".

When did this guy start studying Chinese proverbs?

Well, it's not incomprehensible.

In Neon, citing "The Analects of Confucius" in a composition is a very grand thing.

Perhaps the same is true of proverbs.

Luo Zhen looked at the composition paper in front of him, on which countless circles had been drawn with a pencil to mark the places that needed to be revised.

"Don't quote "Run, Melles", that's outdated." He said, "It's like Taishi Company Maqian, the old man is pitiful enough, every time Huaxia students write an argumentative essay, they have to suffer a castration, and in the future Demonstrate your strength.”

"Then what should I use?" Nakano Wuyue was sweating profusely.

"Using this sentence, 'A small amount is not a gentleman, but an excess is not a husband', a Chinese proverb."

"Wait, you spoke too fast, repeat the second half of the sentence again."