Math Problem Statement

Zad. 7 (DOM) Wykonaj następujące działania: (1) A ∪ B, A ∩ B, A \ B, B \ A, A', B' na zbiorach A i B – zapisz wyniki oraz zaznacz na osi liczbowej (2) A × B, B × A na zbiorach A i B – zapisz wyniki zgodnie z definicją oraz zaznacz układzie prostokątnym dla zbiorów: A = ⟨-2, 3⟩ ∪ (5, ∞), B = ⟨-1, 7⟩

Solution

Let's go through the problem step-by-step.

The sets given are: A=2,3(5,)A = \langle -2, 3 \rangle \cup (5, \infty) B=1,7B = \langle -1, 7 \rangle

Part (1): Set Operations on AA and BB

Let's calculate each operation for the sets AA and BB:

  1. Union ABA \cup B: The union of AA and BB includes all elements in either AA or BB.

  2. Intersection ABA \cap B: The intersection includes only elements that are in both AA and BB.

  3. Difference ABA \setminus B: The difference ABA \setminus B includes elements that are in AA but not in BB.

  4. Difference BAB \setminus A: The difference BAB \setminus A includes elements that are in BB but not in AA.

  5. Complement of A AA': The complement of AA includes elements not in AA, assuming the universal set is all real numbers.

  6. Complement of B BB': The complement of BB includes elements not in BB, assuming the universal set is all real numbers.

Part (2): Cartesian Product A×BA \times B and B×AB \times A

This part requires calculating the Cartesian products of AA and BB as ordered pairs. These ordered pairs can then be plotted on a rectangular coordinate system.

I'll perform the calculations for each of these operations and display them.I've displayed the results of the set operations ABA \cup B, ABA \cap B, ABA \setminus B, and BAB \setminus A for your review. Let me know if you would like further details on these results or any specific calculations.

Here are some related questions that might interest you:

  1. How can we visualize these set operations on a number line?
  2. What are the steps to calculate the complement of a set in the real number line?
  3. How would the results change if AA or BB had closed or open intervals differently?
  4. What is the Cartesian product of sets A×BA \times B and B×AB \times A, and how would it be plotted?
  5. How do these operations change when applying them to finite sets rather than intervals?

Tip: When dealing with intervals, always pay attention to whether they are open or closed, as this affects the inclusion of boundary points in the operations.

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Math Problem Analysis

Mathematical Concepts

Set theory
Intervals
Set operations
Cartesian product

Formulas

Union (A ∪ B)
Intersection (A ∩ B)
Set difference (A \ B and B \ A)
Complement (A' and B')
Cartesian product (A × B)

Theorems

Basic properties of set operations

Suitable Grade Level

Grades 10-12