~ on R? by (x, y) ~ (u, v) if and only if ? + y? = u² + v2. In class, we saw that this defines a binary relation on R2 which is reflexive, symmetric, and transitive, hence it is an equivalence relation. Describe all of its equivalence classes. Define

Elementary Geometry For College Students, 7e
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Author:Alexander, Daniel C.; Koeberlein, Geralyn M.
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Chapter1: Line And Angle Relationships
Section1.4: Relationships: Perpendicular Lines
Problem 24E: The Segment-Addition Postulate can be generalized as follows: The length of a line segment equals...
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R={(a.o) €Ax Alpe 사}.
In other words, R is the diagonal in A x A.
Note: The hypotheses here are a little different from what was stated in class. The
containment {(a, a) E A x Ala E A} C R follows from the fact that R is reflexive.
The containment RC {(a, a) E Ax Ala E A} will take more work and uses the other
2 properties.
2. Define
~ on R? by (x, y)
(u, v) if and only if x2 + y? = u² + v². In class, we saw
%D
that this defines a binary relation on R2 which is reflexive, symmetric, and transitive,
hence it is an equivalence relation. Describe all of its equivalence classes.
Transcribed Image Text:R={(a.o) €Ax Alpe 사}. In other words, R is the diagonal in A x A. Note: The hypotheses here are a little different from what was stated in class. The containment {(a, a) E A x Ala E A} C R follows from the fact that R is reflexive. The containment RC {(a, a) E Ax Ala E A} will take more work and uses the other 2 properties. 2. Define ~ on R? by (x, y) (u, v) if and only if x2 + y? = u² + v². In class, we saw %D that this defines a binary relation on R2 which is reflexive, symmetric, and transitive, hence it is an equivalence relation. Describe all of its equivalence classes.
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