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People's Education High School Mathematics Edition B Compulsory Course 2
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Beijing Normal University Edition Fifth Grade Mathematics Volume 2
Qingdao Edition Seventh Grade Mathematics Volume 2
People's Education Press First Grade Mathematics Volume 2
Category | Format | Size |
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People's Education High School Mathematics Edition A Compulsory Course 1 | pptx | 6 MB |
Description
"End of Chapter Review Lesson" Collection and Commonly Used Logic Terms PPT
Part One: Reminder and Exploration
Union, intersection and complement operations of sets
[Example 1] It is known that the complete set U={0,1,2,3,4,5,6}, the set A={x∈N|1 (1) Use enumeration method to express sets A and B; (2) Find A∩B and ∁U(A∪B). [Solution] (1) From the question, A={2,3,4}, B={x∈R|(x-1)(x-2)=0}={ 1,2}. (2) From the question, A∩B={2}, A∪B={1,2,3,4}, so ∁U(A∪B)={0,5,6}. regular method The operations of sets mainly include intersection, union and complement operations. This is also the main test point of the set part of the college entrance examination. Some questions are relatively simple and can be obtained directly based on the definition of set operations. Some questions are combined with solving inequalities or equations, which require First solve the inequalities correctly, and then perform set operations. Some set problems are relatively abstract. When solving problems, you need to use Venn diagrams for number-shape analysis or the use of number axes. The number-shape combination thinking method can make the problem intuitive and visual. This enables the problem to be solved simply and accurately. Track training 1. It is known that the complete set U={1,2,3,4}, the set A={1,2}, B={2,3}, then ∁U(A∪B)=() A. {1,3,4} B. {3,4} C. {3} D. {4} Parameter issues in set relations and operations [Example 2] It is known that the set A={x|0≤x≤2}, B={x|a≤x≤a+3}. (1) If (∁RA)∪B=R, find the value range of a; (2) Is there a such that (∁RA)∪B=R and A∩B=∅? regular method When calculating the parameter range based on the relationship between sets, it is necessary to deeply understand the concept of subsets, convert problems in the form A⊆B into A B or A = B, and then list the inequality groups so that the problem can be solved. In the process of establishing inequalities, You can use the number axis to promote numbers with shapes and turn abstraction into concreteness. Pay attention to accurate drawing and comprehensive classification. Keywords: Free download of PPT courseware for compulsory course No. 1 Mathematics in High School People's Education A version, download of PPT for end-of-chapter review course, download of PPT of sets and common logical terms, .PPT format; For more information about the "End-of-Chapter Review Lesson Collection and Commonly Used Logic Terms" PPT courseware, please click the End-of-Chapter Review Lesson PPT Collection and Commonly Used Logic Terms ppt tag. "End of Chapter Review Lesson" Newton's Laws of Motion PPT: "End-of-Chapter Review Course" Newton's Laws of Motion PPT Part One Content: Consolidation Level Knowledge Integration [Core Quick Filling] 1. The relationship between force and motion: Force can _____ the motion state of an object. 2. Newton's first law: All objects remain at rest or __________.. "End of Chapter Review Lesson" Force and Balance PPT: "End of Chapter Review Course" Strength and Balance PPT Part One Content: Consolidation Level Knowledge Integration [Core Quick Filling] 1. Synthesis and decomposition of force (1) Obey the rules: _________ rule or _________ rule. (2) The range of the resultant force of two common point forces: _________F_______.. "End of Chapter Review Lesson" interactive PPT: "End-of-Chapter Review Lesson" Interactive PPT Part One: Consolidation Level Knowledge Integration [Core Quick Filling] 1. The concept of force (1)Vectorality: both ____ and ____. (2) Effect: Make the object ____, change the ____ of the object. 2. Gravity (1)Definition..
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Update Time: 2024-10-18
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