I have a date with math

With the help of English, I can do cloze very quickly, and I am so excited that I can do it at 01:30 in the morning.

The main reason is that he puts it next to me, and I don’t even have to look through the English-Chinese dictionary. See what words I tick off, English pronunciation + translation, and there are no new words. After finishing an article, I will turn over the answer again. The cap is also wrong by two or three empty.

However, there is still a flaw in English: "Longyu, several of the words you ticked off are all in boldface, have you memorized the words well?"

"No."

I continued to brush the questions without looking up.

"..." English was speechless for a while.

Mathematics, who was dozing off with his head propped up on the desk, slipped his hand, and suddenly woke up. Looking at the scene of me and English huddling together on the bed, I said, "Damn, what time is it, why are you still doing it?"

"It's 01:30," English yawned, "he's almost finished the gestalt of this book——Long Yu, are you a devil, and you won't be mentally fatigued?"

Mathematics smelled jealous, and said leisurely: "He still prefers English now."

The old English blushed and smiled.

...You two are crazy!What is this talking about?I stared back fiercely, put down the pen, and quit.

Mathematics took out the information and rubbed up: "Long Yu Long Yu~~~ Let's review the coordinate system and parameter equations~~~"

In fact, I don't feel much sleepy now, so I nodded, knocked my English out of bed, and started doing math.

With her hands on her hips, English said: "It's really too much, I will drive me away after I use it..."

"Don't make noise, let's go quickly." Mathematics waved his hand to signal him to go quickly.

English slammed out the door.

……kindness?No, you are a subject, and you are not a dormitory student in our school. Where can you go if you slam the door?I short-circuited my mind.

Thinking of their affairs is not something that me, a mortal, can spy on, so I have to give up thinking first and focus on mathematics.

The book Mathematics gave me is a thick exercise book I bought before. I only did sets and a small part of functions, and there are a lot of empty areas in other places.

To be honest, the questions about the coordinate system and parametric equations are very simple, and I can basically get full marks for each exam if I finish this part.However, I am often out of shape for exams, and it is easy to give up even where I can do it.

"You basically have a 100% correct rate for the first question. The next thing you need to practice is the second question. I divided it up. You know how to find intersections and connect lines, and solve problems simultaneously. The main reason is that this kind of question is more difficult. You will skip the questions every time. I have already ticked them off, you can do these few questions, and you don’t need to waste time doing questions that you have fully mastered.”

Mathematics pointed in my book while speaking to me in a very serious tone.

I hit a wall just by doing the first question he ticked, and I had no idea to draw a picture, so I had to ask him for help.

Mathematics looked very serious, and handed me the thick answer analysis, asking me to read it first, and ask him if there is something I don't understand.When he taught me to do the questions, he was as serious, gentle and patient as the first night.

Loved it.

But after reading the analysis, I am still confused...

"You have a problem with the first question."

"Impossible," I retorted, "I can't possibly do the first question wrong."

"It's not a mistake, it's because the simplification is not complete. You see, simplify this, and then combine this formula with question [-]. Use formula ① to represent the coordinates of M and N points... Finally, go through the process to find the range. "

Worth!So it is!Cough, about the simplification of the first question... I don't seem to have noticed it...

Mathematics also gave me a problem of the same type, and I solved it quickly.