May I ask the masters, how to train in high school mathematics to complete the last question

Well, because 70% of the college entrance examination questions have basic questions, so you have to save time on these basic questions, and these basic questions are mainly concepts and similar questions after class, so you must be proficient in basic knowledge to do after-class questions, followed by mastering the skills of doing questions, the more time saved in multiple-choice questions, the better, it requires you to master the method of doing multiple-choice questions, with simple, sometimes you can consider the substitution method. If you don't have an idea, do the next one directly, and when you finish the other questions, the ideas may come out, and then go back to do it, so basically there is no problem with completing the test paper.

The previous questions were completed in an hour... Basically, the final problem can be solved,,

Do a lot of questions, do a lot of papers, and grasp the time, when doing papers, even if you do the exercises you bought the papers, you must complete them carefully, don't eat and play when you do the questions, desertion, etc., which will develop bad habits. Make rolls with a calm mind and don't be too nervous. Control the speed of the problem, and if you are blocked by the problem in front of you, pay attention to the time spent on the problem.

Don't let the small be the big one. The best The most important thing is that it is not the key to do it, the key is to be correct and ensure that you can get points, so you must be careful and careful. I hope you can reach the master level soon.

In my opinion, if you don't want to take the test for Tsinghua University and Peking University, it's best not to worry about the last questions (those questions are reserved for Tsinghua University and Peking University). If you have to do it, I recommend you take a look at some of the alternative thinking question types. That will help you develop a new mindset.

I watched it a lot, and I got used to it. That way, when you see the last question, you'll know where to go.

Let 1 trap base x=t

1 (1 x) dx= 1 t dt= - to extinguish hunger (1 t) Wang Qiaojin.

1／（1＋x）³

The same can be done to calculate the following integrals.

The integral of the difference is equal to the difference of the integral, and the deduction of 1 is a variable once, and its definite integral is pi.

Question 1:

I guess you copied the question wrong, it should be that b is a true subset of a, the set of a is [-1,5] blank and points to positive and negative infinity respectively, and the set b is like a finite set, the range of a set is larger than that of b set, it is impossible that a set is a true subset of b set. So I'll answer by saying that b is a true subset of a:

According to the concept of true subsets, all elements of b belong to a, so b is either to the right of line 5 or to the left of line -1, i.e., a>5, a+4<-1, and the arrangement yields: a<-5 or a>5.

Question 2: Set p={x|x=m +3m+1=(m+3 2) -5 4 -5 4}, set t={x|x=n -3n+1=(n-3 2) -5 4 -5 4}, since m and n can go to any value, in fact, p and t sets are equal.

That is to say, the correct one is

(1) Solution: a=, b=, b is a true subset of a a+4 -1 or a 5

Solve a -5 or a 5

So the answer is: a -5 or a 5

2） p=t=[-5/4,+∞

p∩t=[-5/4,+∞

p∪t=[-5/4,+∞

That's right. Hope it helps you in your studies. *^

Problem 1 has a problem, the condition may be if b is a true subset of a In this way, a+4<=-1 or a>5 is solved to a<=-5 or a>5 If the problem is fine, then a is an empty set 2 Find the minimum value of the two functions, the minimum value of m +3m+1 is obtained when m = -3 2, which is 31 4, the minimum value of n -3n+1 is obtained when n = 3 2, and the minimum value of n -3n+1 is obtained when n = 3 2, and if it is -5 4, then p=,t= Therefore, 2 is selected

It is not easy to answer the question, and I cherish it.

If you don't understand, please ask, if you understand, please be in time, I wish you success in your studies