Chapter 5: Work hard, you can also become a master

Imagine that the picture of the soaring dominance of middle school did not appear. Instead, Qin Luo had a flower in front of him, and several Chinese characters appeared in front of Qin Luo.
"The value of the book is too high, and the host is not qualified to read it at this moment."
"..." If possible, Qin Luo would like to find a seam to drill in.
Reluctantly, Qin Luo could only give up solving the world's problems, and instead wrote a book of "Trigonometric Function Expansion and Analysis".
"This kid really changed his sex?" Watching Qin Luo put down "Goldbach's Conjecture" and switch to the next "Trigonometric Function", Li Wei muttered to himself.
He has not seen the prodigal son turn around for more than 20 years, but it is the first time that Li Wei has seen the prodigal son turn around like Qin Luo.
"I want to see when you can pretend."
Li Wei did not leave in a hurry, but just stood still and looked at Qin Luo.
Five minutes, ten minutes, half an hour...
Qin Luo still didn't mean to put down the book in his hand.
He seemed to be immersed in it.
Li Wei was dumbfounded.
"Study hegemony value +1"
"Study hegemony value +1"
Qin Luo didn't know Li Wei's arrival at all. He was looking at his increasing dominance value now, it was like chewing Xuanmai and couldn't stop it.
At this moment Qin Luo felt that his thin body was gradually becoming stronger, and his empty spirit was being supplemented. The bright tomorrow is beckoning to myself.
"Ahem, classmate, how do you do this question?" When Qin Luo was immersed in the sea of ​​learning, a nice girl pulled him back to reality.
Looking back, I saw a pretty girl walking over with a draft paper.
"That question, let's listen to it." Qin Luo responded generously.
As an upright student master, Qin Luo felt it necessary to help the student scum.
"Thank you." Sister Meng whispered thank you, and then handed the textbook in her hand to Qin Luo.
Trigonometric function?
The curve Ycosx+2y-1=0, first shift 2/π units to the right along the X axis, and 1 unit down along the Y axis. The curve equation is:
Just saw the trigonometric function just now, so let's try your strength.
After taking the pen and paper from Meng Sister's hand, Qin Luo began to calculate quickly.
Arrange the formula: Y=1/2+cos(x-π/2)-1, because the original curve is to the right and down by 2/π and 1 unit respectively, so the formula can be directly transformed into : (Y+1)cos(x-π/2)+(y+1)-1=0.
In just two minutes, Qin Luo wrote the answer: "It's solved."
"What? It was solved? So fast?" Lin Shanshan looked at Qin Luo in disbelief. After thinking about this question for a long time, he couldn't solve it, but in Qin Luo's hands, it was solved in just two or three minutes?
"See it for yourself."
Lin Shanshan was skeptical, and he carefully recalculated the question based on Qin Luo's steps.
"...This is really the answer!"
Lin Shanshan was a little stunned for a while.
"The success of the host's massive amount of knowledge caused others to be shocked, and he earned 10 points for Xueba points." The system prompt sounded timely.
Qin Luo's academic hegemony value increased by 10 points.
Beautiful~
"By the way, classmate, you just entered high school, which class are you in?" Qin Luo asked curiously.
Lin Shanshan flushed all of a sudden, and said with a blushing face: "I'm in the third year of high school..."
"Go hard, you will become a high school tyrant like me in the future." Qin Luo looked at her seriously and said with encouragement.