Feeling the pressure from his teacher Luo Wenguang, Yu Hua stood tall and straight, his back was as straight as a benchmark, his head held high, his face showed a look of confidence, and his whole person revealed a sharp determination: "It should be the student's arithmetic score."
"That's right. Sir, let me ask you, what is the second question in the last final question?" Today's Yu Hua is different from before, as sharp as a sharp sword. Seeing this, Luo Wenguang already felt confident, but
Still speaking righteously.
This kind of momentum is definitely not something ordinary students can possess.
"The second question tests mathematical induction and sequence, which is very deceptive. Mathematical induction is required in the final solution stage." Facing the test from Luo Wenguang, Yu Hua looked calm and spoke without pause.
"Do you remember how to find the maximum value for the sixth and third sub-questions? Just give me a rough estimate." Luo Wenguang nodded and asked again.
The sixth major question is the derivative common tangent problem, which is very difficult. It will take some time to solve it even with Luo Wenguang's mathematical level.
"Remember, the specific problem-solving process is h(x)=f(x)+g(x). When a=1-2b=1, h(x)=1/3x3-x-1..." Yu Hua
Carefully give the solution process for the sixth question.
The sixth major question is to assume that the function f(x)=1/3x3-ax(a>0), g(x)=bx2+2b-1.
There are three questions in total.
(1) If the curve y=f(x) and the curve y=g(x) have a common tangent at their focus (1, c), find the values of a and b.
(2) When a=1-2b, if the function f(x)+g(x) has exactly two zero points in the interval (-2,0), find the value range of a.
(3) When a=1-2b=1, find the maximum value of function f(x)+g(x) in the interval [t, t+3].
This question on the common tangent line of derivatives is really difficult. It not only tests the students' mastery of the tangent equation at a certain point on the derivative research curve, but also tests the zero point of the function and the maximum value of the function in the closed interval.
When faced with this question, many students in the class only wrote one solution.
Of course, this is no problem for Yu Hua, as he can clearly remember the content and answers of each question.
After half a minute, the solution process was completed.
"What is the answer to question 2 of the fill-in-the-blank question?"
"(-3,0)."
"What is the tenth fill-in-the-blank question testing?"
"The definition of definite integral. Find the definite integral."
"What's the answer?"
"2."
"Why did you choose C for the third multiple-choice question?"
"The third multiple-choice question is very deceptive. The question is about functions and the test is about vectors."
Yu Hua was calm and collected, and answered questions fluently.
"The last question is, how to solve the trigonometric function minimum problem?" Luo Wenguang said with a faint smile on his face.
Yu Hua still didn't pause and answered truthfully: "To find the optimal value of a trigonometric function, we must first analyze the nature of the problem and then solve it."
"Okay, you go back first and prepare well for the exam in the afternoon. This quiz is different from previous quizzes. You must pay close attention to it and don't slack off. Sir, I look forward to your performance." After listening to this, Luo Wenguang's eyes were full of appreciation.
And looking forward to it, as if I had discovered a huge treasure, I gave a small hint.
After a test, Yu Hua's performance was truly amazing. Even Luo Wenguang had to be surprised and filled with admiration.
This boy is truly extraordinary.
As for the purpose of coming to the classroom to look for Yu Hua, at this moment, Luo Wenguang had already forgotten it. Based on this inquiry alone, Luo Wenguang could conclude that Yu Hua obtained a perfect score in arithmetic based on his own strength, rather than cheating.
As the saying goes, mathematics never lies.
"Sir, is there anything special about this quiz?" After receiving the prompt information from Luo Wenguang, Yu Hua asked softly with doubts.
Is this quiz different from previous quizzes?
What's going on?
"We can't say it yet. You will know in the future. I will leave first." Mr. Luo Wenguang did not continue to reveal the situation of the recommended student system. He looked at Yu Hua expectantly with a smile on his face, then turned and left.
"Goodbye, sir." Yu Hua had no choice but to say goodbye.
Luo Wenguang's face was serious when he arrived, even with a hint of scrutiny, but when he left, Luo Wenguang was full of expectations and smiles.
"The difference in this quiz... there are too few clues and no answers. Whatever it is, as long as you do well in the exam, let the results speak for themselves." Yu Hua looked at Luo Wenguang's leaving figure and thought in his mind, searching for memories in his mind to no avail.
Harvest, shook his head, turned around and returned to the classroom.
For students, the most important weapon is their grades.
With the results, everything is easy to say.
If there is no achievement, everything will stop.
Now, go back and cook.
There are no bad canteens, only loyal cooks.
…
At noon, the weather gradually became clearer.
Boys' dormitory, 2Jia6.
"Wow..." The sound of turning a book came out.
Jin Jie is sitting on the lower bunk with the best lighting during the day. He has a handsome face, regular features, and a flat hair style, which gives people a feeling of high energy. He holds an English textbook in both hands and keeps reciting English words.
After finishing the Chinese language test in the morning, Jin Jie quickly returned to his dormitory and concentrated on reviewing the English language that was most important to him to prepare for the upcoming English quiz.
In Literature Class 1, Jin Jie’s English scores were among the best with her excellent language talent, and she was famous in the class for her fluent English.
The key to the subject of English is to memorize words. If you can memorize the words, you will know the general meaning. Even if you may lose points due to difficult problems, most of the points will be collected.
Reciting words has become something Jin Jie must do every day, and it is also the most important thing before the English exam.
If you sail against the current, you will retreat if you don't advance.
Jin Jie had to go all out for this first-month quiz. Although he was inexplicably reprimanded and warned by Lin Wan last time, which made him worry about gains and losses, his personal emotions still did not affect his studies.
Pursuing Lin Wan is a small thing, focusing on studies is a big thing.
There is another reason, that is, Jin Jie gets information about education reform from home. Next year, a nationwide unified admissions examination will be held in Peking, and this year something new will appear in the national education system...
Recommended students.
They are exempted from taking the unified admissions examination and can directly enter national universities. The winners do not need to bear the risks involved in the examination. For students, being a recommended student is almost an invitation to the university, which can be regarded as a symbol of status and strength.
The temptation is huge.
This first-month quiz is closely related to the admission of recommended students.
There was no one else in the dormitory, the furnishings were simple, and there was nothing luxurious. The only difference was that a brand new lighting source was placed in the room.
"Squeak!" At this time, the bedroom door opened slightly, and there was a slight friction sound.
A tall boy walked in. When he saw Jin Jie sitting by the bed, studying peacefully, he immediately lowered his tone, closed the door gently, and walked to his bed to avoid disturbing his study.
It's not special treatment, but the seriousness of disturbing students' studies before the exam...
There is nothing better than killing your parents.
"Bang!" Just a second after the door had just closed, suddenly, the entire dormitory door suddenly opened, and there was a huge noise.
The tall boy looked confused and at a loss.
What's going on?
Jin Jie, who was reviewing his homework, frowned, but he was not angry. He looked up at the door and saw his roommate Liu Furen standing at the door, panting.
"A big thing! A big thing!" Liu Furen stood at the door, his chest rising and falling, slightly dressed in rough clothes. He almost ran all the way upstairs, facing Jin Jie and the sports-loving Lao He, raising his right hand and saying.
"Fu Jen, what is it that makes you behave like this?"
Jin Jie was a little curious when he saw this. This was not like Fu Jen's past style.
"Lao Jin, Lao He, mother... mother Xipi, someone got perfect marks in the arithmetic test this morning!" Liu Furen adjusted his breathing slightly, turned his eyes to Jin Jie and the tall boy He Yutian, and announced the important news he had just received.
silence.
In an instant, the dormitory fell into a brief silence.
Jin Jie looked shocked, and the English book in his hand subconsciously fell to the ground. He Yutian was so confused that he was so confused that his head was dizzy. After the arithmetic test in the morning, both of them understood that this first month of primary school
How difficult is the arithmetic test paper?
Jin Jie, who usually scores 70 points on the test, has a self-assessment score of no more than 35 points.
However, on this test paper, someone actually got full marks?
It’s simply out of the ordinary!
"Holy shit, is this true? That's a perfect score!!!" After a few breaths, He Yutian recovered from the shock and couldn't help shouting loudly.
Liu Furen nodded: "Of course it's true, it's going to go crazy in the school soon."
"Fu Jen, the student who got full marks in arithmetic is from the literature class or the science class, is it Anyuan or Lin Wan?" Jin Jie took a deep breath, clenched the English textbook in his right hand, suppressed the emotions in his heart, remained calm, and asked
road.
Jin Jie, who knew the inside story of this first-month quiz, deeply understood what a perfect score in this arithmetic test meant.
The recommended system was first introduced, and the names were extremely rare.
If you come from a science class, that's fine, but if you come from a literature class...
After the school officially announces the recommended student system, the competition will definitely become more intense.