My Identity As A Schoolmaster Has Been Exposed

Chapter 19-White and Flawless Scratch Paper

untie:

(1) According to the meaning of the question, b=equal sign 3

And the eccentricity e=√(a²-b₂)/a=1/2, so a=2

So the equation of the ellipse is x²/4+y²/3=1

(2) Let…

…

When the word “solution” is written, it means there is no turning back when the bow is opened. Xu Cong’s answer is like a cloud and flowing water in one go.

Su Rui couldn’t keep up with his answering speed because he wrote too fast!

Regardless of whether the answer is correct or not, she is a little confused now that she can’t understand it anyway!

What is known, what is the use of the vertical theorem, anyway, in the end, Xu Cong seems to be able to give a very reasonable answer.

She looked down at her watch, and it hadn’t been five minutes since then, and he even did a few big math problems. It’s not a human being!

When did the math test paper become so worthless? In Xu Cong, doing the questions is like playing.

Su Rui invited another invigilator to the side and asked with a serious look: “Teacher Feng, it’s you. Can you do it so quickly?”

When the teacher heard her question, he immediately shook his head, smiled helplessly, and said, “What a joke, I can’t do that.”

“Looking at him doing the question, he is basically familiar with it, he will give the correct answer directly after reading the question, and he is extremely confident in his own answer, hiss…it’s too scary.”

Su Rui frowned upon hearing this, and asked in confusion: “The correct answer?”

“Oh, I forgot to tell you, I teach third grade math!” The teacher also started to report to his family.

“!!!”

After Su Rui learned that he was teaching mathematics, she was even more shocked. It was incredible that a third-year math teacher would admit that he was inferior to a second-year student.

“So, what he did is right?!”

Xu Cong is not only fast, but the answer he made is correct!

The invigilator nodded solemnly at her.

f*ck!

I f*ck!

Even if Su Rui is a lady, she can’t find any elegant words in her heart to describe her shock at this moment.

“It’s really not human!”

The invigilator reminded her in time: “Mr. Su Rui, don’t say that! Are you cursing people?”

“I…this…” Su Rui was a little embarrassed, don’t you know, he is my student!

After a conversation, the two went back to Xu Cong and looked down. Xu Cong was already working on the next question.

This is a graphic problem, and there are proofs and some to prove the sine value.

After Xu Cong finished the proof of the first question, he began to find the sine of the plane angle required by the question.

Swish!

Finished writing in one go!

Then he raised his head and looked at the clock hung on the wall. After a moment, he murmured, “Why does time pass so slowly?”

slow?

Obviously your kid did it too fast!

Both teachers couldn’t help but want to talk about him.

Xu Cong lowered his head and looked at the question carefully again, “hiss…” He took a deep breath.

Seeing his performance, Su Rui’s first reaction was: “The answer is wrong?”

But before she could react, Xu Cong actually slowly wrote the three words “Method 2” in the blank space of this question!

Method 2!

You still have an algorithm, be yourself!

Please be a man!

Others don’t have enough time for the exam. You are still thinking about studying the second algorithm, and there is not much time between thinking before and after. Xu Cong has some ideas.

The eyeballs of the invigilator who taught high school maths were almost bulging, and he wanted to vomit blood when he looked at Xu Cong’s test paper.

He looked at Xu Cong’s method 2 and then looked at method one. After comparing the two, his brain was buzzing. These are completely two different solutions!

Quite differently, but the final answer is exactly the same.

He carefully compared these two problem-solving ideas, and both were correct!

All correct!

! ! !

This student is too awesome!

Undoubtedly learning God!

He should be escorted!

He shouldn’t be buried in our Xiling High School!

His eyes flowed crazily, searching for the name on the test paper, Xu Cong.

His name is Xu Cong, a student in Class 3 of the second grade!

I remember!

I remember this student, oh no, I remember this studying God!

After Xu Cong finished writing the two solutions, he flipped through the test paper and looked briefly at it.

“Hey…” A strange auxiliary word whispered from his mouth, and at the same time there was a look of relief on his face.

Su Rui was puzzled by his operation: “???”

Then Su Rui heard him say to himself: “Fortunately, there is one more question, so I don’t have to wait more than an hour to hand in the paper in advance.”

Puff–

Xu Cong’s words seemed like a deep-water torpedo, which was detonated on the spot, causing great waves in the hearts of Su Rui and another invigilator!

This guy…other classmates are still struggling with the problem, but he is thinking about when the paper will be handed in…it’s ridiculous!

They dared not watch Xu Cong’s answer anymore, and left quietly, and they started paying attention to other classmates.

All of these are either scratching their hair or biting the end of the pen, racking their brains to think about how to do the topic.

But they have just completed the first proof question, and there are more difficult ones later!

A piece of cursive paper!

Two pieces of cursive paper!

Three acting cursive papers!

They all used three parrot papers, and they were full of words on both sides, and they didn’t know the answer came out.

“this……”

It is not that the two invigilators look down on people, but Xu Cong is too cruel. After seeing his answers, the demands on these ordinary students will naturally be higher.

Su Rui’s eyes were on the first place in Chinese in the next class. Her mathematics was not bad, the first three in the class, but she only managed half of the test paper, and she also wrote densely on the paper.

Su Rui couldn’t help shaking her head. She had just seen the horror of Xu Cong, and when she looked at other classmates, she thought they were scumbags.

Even the one with very good grades is lacking in interest.

Su Rui still thinks that it is interesting to watch Xu Cong answer the question. It is like watching TV. There will be an advertisement for a while, and it is still a boring variety show. Who will watch it?

Anyway, those boring shows are not commercial-free, great blockbuster blockbusters are attractive!

There is simply no comparison!

Xu Cong’s answer is like a magnificent visual feast!

“Hey…” Su Rui sighed, turned and left the female classmate.

This classmate shook his heart, what the hell?

Why did this teacher sigh in front of me?

Could it be that I made a mistake in the previous topic?

This, this…

She didn’t understand, she felt that she was very good today, and she has performed supernormally!

She obviously did it smoothly, but the teacher’s lament made her mentality a little broken.

She raised her head to look at Su Rui, and saw Su Rui walked up to Xu Cong again, with a smile on her face.

But the next second, she noticed that Su Rui’s eyes widened suddenly, and she was dumbfounded.

what happened? This student was also very curious about what caused the teacher’s reaction so much.

She followed Su Rui’s shocked gaze, and she noticed Xu Cong’s amazing behavior.

At this time, Xu Cong put down his pen and began to pack up the test papers.

When Xu Cong picked up the test paper, although she could not see what was written on Xu Cong’s test paper, she wrote very neatly and densely in vaguely.

Then she paid attention to another important point, why is his performance paper white and flawless?

In the sun, white to reflective!

So dazzling!