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Question: Answered & Verified by Expert
The set $\{-1,0,1\}$ is not a multiplicative group because of the failure of
MathematicsMathematical ReasoningKCETKCET 2008
Options:
  • A closure law
  • B associative law
  • C identity law
  • D inverse law
Solution:
1206 Upvotes Verified Answer
The correct answer is: inverse law
Let $G=\{-1,0,1\}$
Since, the multiplicative inverse of 0 is not defined.
Hence, inverse law fails the multiplicative group.

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