"Known Strictly Increasing Sequence of Unbounded Positive Numbers......"

Incremental, I know, ever-increasing. But Unbounded, what the hell is this?

Not a ghost? The mind diverged, hey, I remembered, it was a boss in the old arcade machine King of Fighters.

There seems to be a word associated with unbounded, Nine Voids Unbounded, but Nine Voids Unbounded seems to be in "Fengyun".

Wait, the old boss of the King of Fighters, "Fengyun" is invincible, I damn it, does it have anything to do with mathematics, or continue to watch.

The number series, looking at my language's Dawang Wensheng Yishu, should be the number listed, no, there is a string of numbers listed later.

cough, okay, I think about it, I seem to have learned the number series in junior high school, so I don't need to look at the text.

Sweat, fists do not leave the hand, do not leave the mouth, do not review the old and learn the new, and the knowledge learned is forgotten too quickly.

However, I found that even if I did not forget, I could not understand the question. Nima, I can't even understand the question, let alone solve it.

This is the Daxian class, the innovation class and the parallel class, 9 classes, when making this paper, the general situation.

The air conditioning in the classroom was running normally, it should have been cold, and those with a slightly weaker constitution even needed to wear long-sleeved clothes, but the freshmen were sweating like pulp, and their eyes were red.

In fact, the people who can insist on watching it in a cold sweat are really just watching it and seeing the last three finale questions, in fact, there are very few, and more people have died early on the front multiple choice questions.

In the case of Oban, which is outside classes 3 to 11, the situation is slightly better.

It's just that this is a little better, Cheng dù is very limited, and it is pulled up by the mathematics group, and it seems that some of the physics group can be carried out.

Guan Xiangrui is from the mathematics group, and the previous questions can barely be said to be smooth.

He was very glad that because he was secretly competing with Lu Xi, he followed Lu Xi's progress and brushed up on a part of "5-year College Entrance Examination 3-year Simulation" and "High School Mathematics Training Excellence Course".

Otherwise, he didn't dare to think about the consequences.

As a student in the Oban Mathematics group, it would be humiliating to fail even the exam.

But because the time was too tight, I couldn't finish brushing it, and the more I went to the back, the more bumps and bumps I had.

Finally finished the questions in front of the finale, Guan Xiangrui's thoughts relaxed slightly, remembering the shocking speed of Lu Xi in class 3 (zero) before, and then thinking of Lu Xi in class 6.

"I don't know how she did, but in more than two months, she was able to finish the "5-year college entrance examination 3-year simulation" and "high school mathematics training course", and start the "Olympiad Classics" and "Mathematics Competition Research Course", the god must be relaxed and happy, right?"

Guan Xiangrui glanced at the classmates around him, the situation was similar to his own, and he was struggling to move forward.

After all, he is a person who engages in competitions, and his learning consciousness and self-learning ability are still very strong.

He laughed silently and returned to his mind, ready to do the final three finale questions.

The number series problem seems to be very difficult.

Guan Xiangrui's brows furrowed, and he carefully studied the topics and questions.

But after a long time, there is still no clue.

Guan Xiangrui, who was thinking hard, looked up at the time, there was not too much time, and he felt an itch on his forehead, so he raised his hand and wiped it on it with the back of his hand.

At this moment, he didn't notice the sweat that was wiped off the back of his hand.

More than ten minutes passed, and Guan Xiangrui, who was about to lose his breath, flashed a spiritual light in his mind.

"Harmonic inequalities, yes, try them with harmonic inequalities."

He was like a drowning man, and the reconciliation inequality became his lifeline, and he clung to it and hurriedly calculated it on scratch paper.

After writing a page, there was no result, and his already not very calm mind became irritable.

He usually develops the habit of doing questions step by step, and his handwriting is obviously messy a lot.

Sneered, suddenly used too much force, and cut the scratch paper, so far, two pages were written, and Guan Xiangrui woke up like a dream, and he sadly found that his idea of reconciling inequality seemed to be getting farther and farther away from the answer.

It took almost twenty minutes and went the wrong way.

Guan Xiangrui smiled bitterly and wanted to turn back, but there was no time.

He finally reacted, and his head was crumbling too tightly.

He believed that if he did this number series problem in private, he should be able to do it.

Usually brushing the questions freely at home by yourself is not the same feeling as doing the questions in the exam room.

He finally understood why the teacher emphasized the status of the exam. When you are relaxed and not nervous during the exam, it is possible to perform at a normal level.

Guan Xiangrui, who had realized a lot, shifted his attention to the penultimate finale.

That's a plane geometry problem.

From the beginning of the exam, I realized that the paper was very difficult, and my heart seemed to be pinched by a big hand, and Guan Xiangrui, who felt that I had absolutely pounced on the exam this time, was now relaxed.

Being able to do a little is a little bit and don't give up.

Guan Xiangrui regained his spirits and tried to solve this plane geometry problem.

Relaxed, he didn't take long to have an idea.

The exam time is almost over, and he is not in a hurry at this time, because it is useless to be anxious, he writes whatever comes to mind, and strives to get one point.

Lu Xi looked at the time, there were still three minutes before the end of the exam, and she took her thoughts back from the scratch paper.

The scratch paper is densely packed, and it is not the calculation process of the math paper, but the two math problems that she wrote by herself after finishing the paper.

Problem-making, this is a new learning method she has discovered.

Writing a question seems to be very simple, but it is actually a test of one's ability to comprehensively apply the knowledge you have learned.

Because only when you understand the knowledge thoroughly can you get it through to the question and ask it.

Lu Xi's compilation of the topic is not based on the topic he has done as a model, and he is not compiling it according to the gourd drawing scoop, nor is it changing a few variables on the basis of the finished topic, weakening and strengthening the conditions. Because the questions made up in this way are not only not good, but also a pure waste of time.

However, it is a bit difficult to make up a good question, even if it is a good one.

Of course, there are many benefits of making up questions, she thinks a lot about making up questions, and in the process of writing, she will find many problems that she failed to find when doing the questions, and trying to solve them may cause more new problems.

The essence of learning is a process of constantly discovering and solving new problems.

In this way, we can often learn more deeply and think more broadly when considering problems.

At the same time, be able to train your ability to ask questions.

For example, a theorem, seen in the book, but how exactly is it deduced and proved? Where is this theorem beautiful and where can it be used?

"When it was time to eat, the classmates in the back passed the papers. Friendly reminder, there are still five minutes before the seniors of the second and third years of high school get out of class, and everyone goes to the canteen to eat at this time, so there is no need to queue up. ”

In order not to intensify the blow to students, the math teacher did not say that the exam time was over, but hinted that it didn't matter if everyone failed the exam, and it was a good choice to turn grief and anger into food.