Mathematics · Abstract Algebra
Let (Z, o) be a commutative group, where the operation is defined as a o b = a + b + 1 for all a, b ∈ Z. If a' is the inverse of an element a, then a' is equal to:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1-a - 2✓
- 2-a + 2
- 3-a - 1
- 4-a + 1
Correct answer
-a - 2
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