Chapter 330

A title in just seventeen characters!

But it has extremely high difficulty!

It took Du Hong a full month of thought to build it!

This question is not for students to solve, but for them not to get full marks!

Specifically for top students with high IQs like Xiao Shiqi!

"This topic..."

"It seems simple, but it is not!"

"so hard!"

"What a perverted topic!"

"No idea at all!"

The students below were scratching their heads, writing and drawing on the draft paper with a pen, thinking hard, and using many kinds of solutions. All the roads were blocked!

"Hmph, I have been thinking for a month to figure out the problem, if you can solve it so easily. Why am I still a professor?"

Du Hong held his glasses with his hands, and two cold lights flashed on the lenses!

Very weird!

It looks like Conan's pretentious posture when he is about to solve the case!

"Well……"

Xiao Shiqi narrowed his eyes and frowned tightly, unable to make a move for a while.

"Professor is indeed a professor, this topic is really tricky!"

"That kid. I guess he looks dazed now...huh..."

Xiao Shiqi glanced at Su Chen, and found that this guy was actually chatting with his friend, telling jokes while chatting!

He was furious at that time, pointing at Su Chen and yelling:

"Su Chen! We are competing now, what's your attitude!?"

"If you don't want to compete, you admit defeat as soon as possible!"

Su Chen turned his head and smiled at the time, "Competition? Hehe, I'm sorry, student Xiao, you have already lost."

"What!?"

Xiao Shiqi was stunned for a moment.

Professor Du Hong, Liu Hongyuan, her best friend, and more than 120 students, all monks of Erzhang, couldn't figure it out.

Xiao Shiqi has already lost, what does this sentence mean?

Has he already solved the problem?

Are you kidding me, he only read the question for a few seconds? Do you think you are Hua Luogeng?

"Su Chen!!"

Xiao Shiqi was amused. "In broad daylight, bright and clear, in a solemn and sacred class, you actually pretended to be aggressive!? Do you still have Professor Du in your eyes, and do you still have the school discipline and rules of Jiangnan University! Do you still have my opponent!?"

"You said you have already won the game? Okay, then tell me the answer and solution to this question now!"

"If you can tell, I, Xiao Shiqi, will eat this box of chalk on the spot!!!"

Xiao Shiqi pointed to a box of white chalk. announced loudly.

He still can't believe it!

"Yo, I didn't expect Xiao to have such a weird habit~?"

The corner of Su Chen's mouth twitched, and he said lightly, "You want to hear the solution, don't you? Okay, prick up your ears and listen!"

The decibels of the voice are raised instantly!

A domineering aura that looked down on the world swept across the world!

"Let x=sint, -π/2∫√(1-x)dx=∫costdt=∫[(1+cos2t)/2dt

=1/2(∫dt+∫cos2tdt)=1/2∫dt+1/4∫cos2td(2t)

=t/2+(sin2t)/4+c=t/2+sintcost/2+c

Since x=sint. -π/2cost=√(1-sint)=√(1-x)

Therefore, the required integral is ∫√(1-x)dx=arcsinx/2+x√(1-x)/2+c..."

Su Chen spoke extremely fast, and spoke out the steps of this difficult problem in three seconds!

The entire classroom was silent.

No one understood, not even Professor Du Hong. I only heard about it.

"Su... Su Chen, I'm sorry, you spoke too fast, can you slow down, I'll write the steps on the blackboard."

Du Hong picked up a piece of chalk and said.

"Oh, there's nothing I can do with you..."

Su Chen shook his head, had no choice but to slow down his speech, and said it again.

"call……"

Look at the five rows of problem-solving steps on the blackboard. Du Hong let out a long breath!

Eyes are shining!

Sigh!

"Young people are awesome, young people are scary..."

Du Hong kept shaking his head.

Anyone can understand the meaning of his words...

Su Chen, that's right!

"hiss--"

There was a lot of gasping sound in the classroom!

Everyone looked like a monster. Looking at Su Chen incomprehensibly!

How many seconds?

In twenty seconds at most, he solved the calculus problem that Professor Du had been thinking about for a month, this guy. Still human? !

"Plop!"

Xiao Shiqi was so frightened that he fell to the ground on the spot!

Like a lunatic, he kept shaking his head, "No...impossible! This is impossible!"

Du Hong didn't even look at him, as if he had found a treasure, he looked at Su Chen: "Student Su!"

"You... did you teach yourself calculus!?"

Su Chen nodded, "Well, I read a few books in the dormitory."

"How many books have you read? Can you solve this problem?"

Du Hong was full of suspicion. Could it be that this kid is really a once-in-a-century math genius? Self taught?

"To tell the truth from Professor Du, I have been very talented in mathematics since I was a child."

Su Chen smiled slightly!

Turn on the pretense mode!

"Seven months from my mother's womb, I just finished speaking. I can recite Arabic numerals!"

"When I'm one year old, I can't handle addition and subtraction within ten! I've learned a little bit about addition and subtraction within one hundred!"

"At the age of three, in kindergarten, I can already recite the multiplication table backwards!"

"Four years old. In the first grade of elementary school, other students are still troubled by the addition and subtraction of single digits. I can already recite pi to the hundredth place!"

"Graduated from elementary school at the age of five, and graduated from junior high school at the age of seven."

Su Chen raised his head proudly!

Looking down at the stunned students, he flicked out three fingers!

"That's right!"

"I, Su Chen, completed the nine-year compulsory education that you have gone through in only three years!!!"

"Now, I can add, subtract, multiply and divide within twelve digits, and I can do mental calculations in a maximum of two seconds!"

One word is out!

The audience was shocked!

Everyone thought that Su Chen had lost his mind!

Twelve-digit addition, subtraction, multiplication and division, two seconds, mental arithmetic?

The calculator can't press it so fast! !

"Hongyuan, you elementary school boy, you must be sick..."

"Still very sick!"

"Reading and reading, the more you read, the more you become a pig..."

Liu Hongyuan's three girlfriends sighed endlessly, how could such a handsome little brother be such a fool?

God is jealous of beauty.

at this time!

Xiao Shiqi seemed to have grasped a life-saving straw!

"噗!" With a click, I got up from the ground!

"Su Chen!"

"Made! If you pretend to be aggressive in front of me again, believe it or not, I'll show you to death!!!"

Su Chen looked contemptuously and glanced at him, "Ants, death is not a pity."

"you……"

Xiao Shiqi almost belched!

The next moment, he strode to his seat and took out a calculator from his schoolbag!

"Okay! Su Chen!"

"Didn't you say addition, subtraction, multiplication and division within twelve digits, can you do mental arithmetic?"

"I'll test you now!"

Xiao Shiqi snorted coldly, and casually reported two strings of numbers:

"682395132684x126954368416!"

"How much is it equal to?!"

"You do the mental math for me! Do the math!"

Xiao Shiqi was holding a calculator, his eyes were wide open!

He still doesn't believe in this evil!

The voice just fell——

Su Chen reported a series of numbers expressionlessly:

"866334384973898544."