Let Zodd represent the set of odd integers, {... -5, -3, -1, 1, 3, 5, ...}. Determine if the system (Zodd, +): (i) is closed; (ii) is associative; (iii) has an identity element; (iv) has inverses; and (v) is commutative. Is (Zodd, +) a group? Explain Is (Zodd, +) a commutative group? Explain
Let Zodd represent the set of odd integers, {... -5, -3, -1, 1, 3, 5, ...}. Determine if the system (Zodd, +): (i) is closed; (ii) is associative; (iii) has an identity element; (iv) has inverses; and (v) is commutative. Is (Zodd, +) a group? Explain Is (Zodd, +) a commutative group? Explain
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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Question
2. Let Zodd represent the set of odd integers, {... -5, -3, -1, 1, 3, 5, ...}.
- Determine if the system (Zodd, +): (i) is closed; (ii) is associative; (iii) has an identity element; (iv) has inverses; and (v) is commutative.
- Is (Zodd, +) a group? Explain
- Is (Zodd, +) a commutative group? Explain
Expert Solution
Step 1
The given set is .
We have to determine
(i) is closed.
(ii) is associative.
(iii) has identity elements.
(iv) has an inverse.
(v) is commutative.
Is group or not.
Is commutative group or not.
Step by step
Solved in 4 steps
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