Yang Kewei passed James and came directly to Nicholas' difficulty. Yang Kewei's progress in mathematics was significantly ahead of Ranger.

Everything can be missed, and Yang Kewei is indeed my strong opponent.

Ranger frowned and was under great pressure.

Although there is pressure, you can't be impatient.

Infinite series are an indispensable and important part of calculus. From inverse trigonometric functions to infinite series is a gradual process, following a fixed set of learning rules.

Lan Jinhui's bookcase contains a large amount of mathematical materials, and Lan Jinhui himself is a mobile bookcase.

Ranger is not short of information and has a top science tutor.

It’s just a matter of time to explode Yang Kewei.

Spending more time in mathematics can destroy Yang Kewei.

‘Mathematics, I will promote you to my second sister. You are the second-in-command of Physics. You have a special treatment I have received for 113 minutes in a row. Please don’t let me down.’

Lanjie looked at the time and at 23:23, I didn’t have time to continue my math work today, so I will have in-depth discussions with my second sister tomorrow.

Hey!

ha!

Lanjie sat firmly on the edge of the bed, practiced dumbbells with his left hand up and down, and operated his phone with his right hand down and up: "Are you asleep?"

Octopus bucket: "Lying in bed, sleeping right away."

Huh? I sent the wrong one.

Zhang Yutong’s WeChat nickname is Yutong, and Zhang Yutong’s nickname is Yutong.

In order to form obvious differentiation, Lanjie had long noted that the octopus bucket = Zhang Yutong.

At this time, Lanjie's WeChat, the octopus bucket and Yutong's dialog boxes were close together, and he slipped his hand and sent the wrong person.

After thinking about it carefully, I didn’t make a mistake. It’s also worth caring about whether Zhang Yutong has slept.

ranger: "Well, take a break early, good night."

Octopus Bucket: "Inexplicable greetings, inexplicable good night, so strange."

ranger: "I asked you to watch a movie yesterday and today was rejected, so I only dared good night today."

Octopus Bucket: "I did have something tonight. I just came back from my grandfather's house. Look, this is a tudle raised by my grandfather, it's very beautiful."

ranger: "I kryptoned a group of purebred puppets, your grandfather is really good at playing."

Octopus bucket: "I'm lonely in my old comrade. I'll raise a few cats to relieve my boredom."

ranger: "A swim for a while tomorrow? Don't you want to learn butterfly swimming? I'll teach you."

Octopus bucket: "I'm not free tomorrow."

ranger: "Reject me again? Do you have a man outside?"

Octopus Bucket: "The English class will be held in the whole day of tomorrow and the next two days, Runze Building New Oriental, just opposite Yangda, welcome to check the post."

ranger: "I signed up for New Oriental, right? I understand, I will make an appointment another day."

Zhang Yutong longs for progress, and Lanjie is happy for her.

ranger: "Have you fall asleep?"

Yutong: "I'm in bed and I'm about to go to bed."

ranger: "Does your stomach still hurt?"

Yutong: "It's much better."

ranger: "Can you video? I want to confirm whether your status is absolutely safe."

Yutong: "I'm very safe, it really doesn't hurt."

ranger: "How many milliliters of hot water have you drunk? How many degrees of hot water? How many times did you drink it?"

Yutong: "Who will calculate this? I've drunk hot water anyway."

ranger: "Tomorrow Saturday, your school has classes, so hurry up and go to bed, good night."

Yutong: "An."

flutter!

0:00.

Ranger fell to the bed.

Wow!

Five o'clock in the morning.

Ranger woke up on time.

His biological clock is now accurate to the second, and his mobile phone alarm clock has lost its meaning.

There was an agreement between Lanjie and his second sister in mathematics that a beautiful day starts with his second sister in mathematics.

Although Leibniz's calculus is more fruitful and easier to apply, Newton's calculus is more rigorous.

Newton and Leibniz in history have many similarities. Both are versatile and knowledgeable all-rounders. They are also famous old bachelors in the history of science and have never been married for life.

From a genius boy to a noble dean, Leibniz has talked about many girlfriends, including royal daughters and noble young women. He may have been a bachelor for his whole life because he has not met a true destiny girl.

From country boys to human light, Newton's love history is an eternal mystery. Newton's failure to get married may be because he has never had a girlfriend.

Newton Leibniz's core combination, supplemented by Taylor, McLaurin, Bernoulli and other auxiliary brothers, formed the calculus we learned today.

Lagrangian's status is very special. He is a Ranger Knight who fights alone. f(xh)=f(x)hf’(x)h^2/2!f’’(x)… Lagrangian's derivative function is both flexible and hard, and can be milked and output.

The derivative of physics is represented by points, and the derivative of mathematics is stroke.

Langjie must admit that mathematics is a core, without strokes, there will be no points, without the help of the second sister of mathematics, there will be no carry of the big brother in physics.

The second sister of mathematics is quite satisfied with Lanjie's attitude. I am so awesome. I used geometric drawing method to get the arcsinx series. Boer~ I love you.

"Second sister, don't do this, I'm embarrassed."

The experience of learning physics and learning mathematics is different, and the learning methods are also different. Lanjie only did one thing today, from five in the morning to seven in the evening, he and his second math sister were all day long.

Big brother in physics, second sister in mathematics, third brother in sports.

Ranking has not changed.

The time for moving, going to the toilet and eating is compressed to the extreme, and Langjie's home-study efficiency is extremely high.

"Yeah! I've been studying for 13 hours, fulfilling, happy, satisfied, and proud!"

[Remaining 13 honorable medals.]

‘Only draw single draw! I want a new card!’

Ranger was full of expectations.

A giant like Newton certainly won’t have a 1-star quality, and Leibniz also starts at least 2-star, right?

Is the entire Bernoulli family at least 3 stars?

This family is too strong in the team, and the Bernoulli Group's combat power is extremely terrifying.

But if it is broken down into a single family member such as John, Nicholas, James, Daniel, etc., it is hard to say how many stars it will be.

‘Emperor possessed me, draw another 1-star card for me. I really want to combine 2 stars!’

[Initiate the single draw program and deduct 13 honorary medals.]

【Sorry, I didn't draw the card.】

【Jing Yu Guangrong Medal: 0 pieces.】

'Depend on!'

‘Black?’

‘No more?’

‘No crit strike?’

The world is dangerous, and there are thunders everywhere, the boy is silent, and the girl is crying.

Lanjie's heart was broken, his lungs were exploded, his liver was exploded, his spleen was cracked, and his kidney was weak.

My medal is gone...

I have been studying hard for 13 days and was ruined...

Sure enough, there are risks in single draws.

What is the winning range of a single draw?

This is actually a very complex probability issue, and it is definitely not as simple as early as early CD.

There was an old man in the Bernoulli family who specialized in the theory of probability. Ranger found this old man in his father's bookcase - Jacob Bernoulli.
To be continued...