Determine if the following problem is symmetric and transitive

  • Thread starter Thread starter Meager
  • Start date Start date
  • Tags Tags
    Symmetric
Click For Summary
SUMMARY

The relation defined on whole numbers by a~b if and only if ab² is a perfect cube is not symmetric and not transitive. The analysis shows that while certain pairs like (1, 0) satisfy the condition, other combinations fail to maintain the relation. The key to understanding this relation lies in the prime factorization of the numbers involved, which reveals the underlying structure necessary to determine symmetry and transitivity.

PREREQUISITES
  • Understanding of perfect cubes and their properties
  • Knowledge of prime factorization techniques
  • Familiarity with mathematical relations and their characteristics
  • Basic algebraic manipulation skills
NEXT STEPS
  • Study the properties of perfect cubes in number theory
  • Learn about symmetric and transitive relations in mathematics
  • Explore prime factorization and its applications in relations
  • Investigate examples of mathematical relations and their classifications
USEFUL FOR

Mathematics students, educators, and anyone interested in the properties of relations in number theory.

Meager
Messages
2
Reaction score
0

Homework Statement



Suppose ~ is defined on the whole numbers by a~b iff ab2 is a perfect cube. Determine if ~ is
symmetric
transitive

Homework Equations


ab2 must ba2


The Attempt at a Solution



I tried using different numbers, but it isn't coming out as a perfect square.

For example, I said a=1
b=0........ Then this works.
Using other numbers it fails.

Should a=b?
 
Physics news on Phys.org
Welcome to PF!

Hi Meager! Welcome to PF! :smile:
Meager said:
Suppose ~ is defined on the whole numbers by a~b iff ab2 is a perfect cube. Determine if ~ is
symmetric
transitive

Hint: write a and b as a product of their prime factors. :wink:
 

Similar threads

  • · Replies 2 ·
Replies
2
Views
2K
  • · Replies 4 ·
Replies
4
Views
4K
  • · Replies 17 ·
Replies
17
Views
11K
  • · Replies 5 ·
Replies
5
Views
4K
  • · Replies 24 ·
Replies
24
Views
3K
  • · Replies 4 ·
Replies
4
Views
2K
  • · Replies 2 ·
Replies
2
Views
2K
  • · Replies 2 ·
Replies
2
Views
2K
  • · Replies 11 ·
Replies
11
Views
2K
Replies
2
Views
8K