Senior one math textbook must be electronic.
Mathematics in senior one refers to the mathematics learned in senior one, and the knowledge of mathematics in senior one is more, and the examination questions in senior one account for about 60% of the college entrance examination scores. You have to study five books in a school year. As long as you have a solid grasp of the mathematics in Grade One, Grade Two and Grade Three are only the review and supplement of Grade One.
brief Introduction of the content
Handbook of Important and Difficult Points, Gao 1 Mathematics (1): Award-winning book for 30 million students; Online classes of famous teachers in five provinces and cities; Best-selling brand in the book industry for fourteen years.
Skill points
It is very important to grasp the whole. The importance of high school mathematics is beyond anyone's imagination. Some students have just entered the first year of high school, and they don't adapt. If they learn the skills of the college entrance examination directly, it seems that they want to run if they don't learn well. Any skill is based on solid basic knowledge, so it is recommended that senior one students pay more attention to the basics and read more textbooks.
In exam-oriented education, only by memorizing formulas and theorems, mastering problem-solving skills and being familiar with various types of questions can we achieve the best results in the exam. It is not enough to do the college entrance examination questions. It is necessary to add "proficiency" on the basis of the meeting, and the small questions are generally controlled at about two minutes at a time.
The concept of set sum operation
Set: Generally speaking, all definite and different objects in a certain range constitute a set.
Subset: For two sets A and B, if any element in set A is an element in set B, we say that these two sets have an inclusion relationship, and set A is a subset of set B, which is denoted as A? B is pronounced as a and is included in B.
Empty set: A set without any elements is called an empty set. Write φ.
The three elements of a set: certainty, mutual difference and disorder.
Representation methods of sets: enumeration method, description method, view method and interval method.
Classification of sets: finite set, infinite set and empty set.
Public number set
Relationship: the element belongs to the set: a ∈ a
Settings and settings: a? B，A=B .
Operation: intersection: the set consisting of all elements belonging to set A and set B is called the intersection of set A and set B, and is marked as A ∩ B.
Union: A set consisting of all elements belonging to set A or set B is called the union of sets A and B ... and it is marked as A ∪ B.
Complement set: a set consisting of all elements in the complete set U that do not belong to set A, and it is recorded as CuA.