Mathematics elective 1- 1 test questions

Question 17 Find the derivative of LNX-X/E X through the derivative, then f(x)=0, and substitute the minimax value greater than 0 and less than 0 into the original formula and compare the maximum and minimum values.

19 ditto.

Question 18 is really dizzy.

The first volume of the fifth grade, synchronous mathematics exercise 4 1, how many application problems can't be done?

How to review the seventh unit of mathematics in the first volume of the third grade

I haven't learned it. Is it too late to start preparing for the 22-year postgraduate entrance examination in August?

What basic knowledge do you need to learn advanced mathematics well?

Does Cangzhou Normal University have a junior college?

This composition about friendship is 500 words.

Ask some reading and writing questions for the sixth grade of primary school

Strengthen the practice of basic mathematics every day.

Math diary, a sophomore in primary school, has 250 words and six articles.

What is the ten-break method of 13-7?