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Chapter 686 Sister Yan¡¯s show shocked the audience

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    The image of Li Yan as a waste and a burden was deeply rooted in the hearts of the people, and other people in the classroom couldn't help but start talking about it.

    Occasionally, I would say something like, ¡°I have talked about similar questions before.¡±

    "It won't be difficult."

    "Luck, right?"

    "Otherwise, I just read Nangong Yuhe's answer."

    "It's so fake."

    In short, no one believes that Li Yan has such strength.

    Nangong Yuhe: "???" He, he knows the devil, he didn't even have time to read the question!  ?

    Cai Lijun crossed her arms, turned her head and raised her chin to indicate, "Next question." She was holding a remote control device, and the electronic screen quickly refreshed with new math questions.

    Li Yan scanned the question type, spatial analytic geometric trigonometric functions.

    During the process of reading the questions, the brain automatically started calculating, and Li Yan gave the answer without thinking.

    And when she gave the answer, the commotion in the classroom became even greater.

    Because Li Yan had already spoken before they had time to solve the problem.

    ?  !

    what happened?  ?

    Cai Lijun clicked on another question, a differential geometry question, which was of high difficulty and quality.

    Li Yan stared at the question and calculated it after about half a minute.

    Cai Lijun¡¯s eyes widened a bit, and she became completely serious. She pressed the remote control device again, and the answer and analysis process were displayed in the next second.

    And the answer that came out was exactly the same as what Li Yan said.

    Now a group of people are not calm anymore.

    They just finished reading the questions and Li Yan has already finished answering them?

    What operation is this?  !

    Being able to enter the Shenghan Class, they are naturally proud. They are all the proud sons of heaven, so naturally they cannot admit that a useless vase is better than them.

    So when Cai Lijun opened the blackboard, took out the chalk, and solved complex problems in person, their eyes were fully focused on the questions.

    The draft paper and pen are already in place.

    Here, Nangong Yuhe saw that Li Yan was not prepared, so he pushed his notebook and pen over.

    Li Yan glanced at it and smiled, the corners of her mouth curved a little arrogantly, "No, you can keep it for yourself."

    Cai Lijun asked two questions. She wrote in large characters and used two blackboards.

    ??One is algebraic geometry, and the other is complex functions of hell mode.

    As we all know, algebraic geometry has always been the pinnacle of mathematics, and complex and changeable functions are also the culprit of baldness.

    It can be seen that Cai Lijun is serious about it.

    Li Yan¡¯s hand is holding the little yellow duck plush while answering the question: ¡°A little one uses the Cauchy formula of n-order derivatives to prove¡±

    "Er small, use the Cauchy formula expansion of f'(x) to get"

    "Three small uses of the average formula"

    She was serious when answering the questions. Her white porcelain face was like jade, a face carefully carved by the Creator. Her curves could be soft or sharp. Her slightly raised chin was beautiful and angular, which was indescribably attractive.

    Especially, her voice has a lazy magnetism, which is gorgeous and melodious, like a fox demon with a thousand years of Taoism, which makes people's hearts tremble.

    Questions like this usually only appear at the last big question in the test paper, and most people cannot solve it.

    Li Yan started to calculate the second big question. She stopped and thought for a while, holding the elbow of the other hand with one hand and touching the vermilion tear mole with her fingers.

    "The answer is 1 minus 2¦Ð divided by the square of a."

    The god of study in the Shenghan class is Shen Yunheng, and the one who is jokingly called the second in command is Huo Jin.

    The two of them were still calculating when Li Yan reported the answer, and even Cai Lijun was verifying it after finishing the question.  (Remember the website address: www.hlnovel.com
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