Chapter 108 Problems
Chapter 108 Difficulty
Song Ranran has not been in the living room on the first floor for a long time. After resting on the sofa for a while, she also went back to her room upstairs.
Although it is a weekend, I still can’t relax my study time.
After all, there is so much review content waiting.
After returning to the room, Song Ranran first went to the desk beside the wall and sat on the chair inside.
She first took out the homework assigned by the school this weekend from her schoolbag, and after completing it, she took out a purple cover to start her daily test questions.
Once you start to do the test immersively, time seems to have been pressed on the shortcut key, and it passes very quickly.
When Song Ranran looked up again, it was already three hours later.
It was noon in the middle, and she went down to have lunch and brought a plate of fruit after meals.
After taking an hour's nap, Song Ranran got up and washed her face with cold water, and then began to continue studying in the afternoon.
One and a half hours later.
The pen in Song Ranran stopped in a place, and her drooping gaze fell on a math question on the page she opened.
The eyebrows were slightly raised, as if they had encountered some difficulties.
The question she is currently working on is a mathematical function question and a final question in a certain paper, with five stars in difficulty.
Suppose the function f(x)=loga(x-3a)(a is greater than 0 and a≠1), when point P(x,y) is the point on the image of function y=f(x), point Q(x-2a,-y) is the point on the image of function y=g(x).
There are three questions in total, and the difficulty increases in sequence.
The first small question is just to find the analytical formula of y=g(x), and the second question is to find the value range of a under certain assumptions.
The first two questions Song Ranran did not take much time according to the previous example routines.
But when she saw the third question down, Song Ranran tried to calculate. There were many numbers and letters written on the white draft paper, but when she wrote a certain part, she stopped.
The third question first translates the image of g(x) to obtain a new function, and then assumes a new function, giving the maximum value in a certain interval of five-quarters, and it is necessary to determine what the value of a is.
Song Ranran: “…”
Looking at the description of these two short lines, Song Ranran tried to draw the rough image based on the title to see what it looked like.
It was just because it changed a lot from the previous image of the question, and Song Ranran felt a little messy as she painted it.
After rubbing her eyebrows, she still calculated it herself...
Um-
No solution.
Song Ranran: “…”
After three seconds of silence, she opened the last attached answer analysis. After finding the location, she looked at the question and analysis.
A few minutes later, Song Ranran stopped, her brows still slightly frowned.
The answer analysis is not very long. The final answer number is indeed clearly written, but... what about the process?
There is a part of the important reasoning process in the middle, and it is not known whether it is a printing problem or a writing problem, so it has been omitted.
After reading it roughly, Song Ranran could understand 60% or 70%, but her eyes were fixed on math problems, her curiosity was aroused, and her mind was full of wondering what the entire process should be like.
With his eyebrows slightly raised, Song Ranran thought about it, and a thought flashed through his mind.
Isn’t there a ready-made scholar at home?
Rong Zhou should definitely know this question...
Why not, go and ask him?
Thinking to her mind, Song Ranran got up, took the book, book and pen, pushed the door and walked up the stairs to the third floor.
Thanks to the orange-flavored cat for the two monthly tickets! Thanks to the rewards and support from the little fairy Su Yi and the lazy fairy under the air conditioner! Bi Xinxin, (づ ̄3 ̄)づ╭~
The math problems involved in this chapter were found on a big question on a certain paper. In fact, I didn’t understand them. My high school math grades are okay, but it’s been a long time. The author does not need to learn mathematics after going to college.
Chapter completed!