# Does the set {irrational numbers} U {1} form a group under multiplication?

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Does the set {irrational numbers} U {1} form a group under multiplication? Either show this or explain why it is not true.

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#### Solution Summary

Whether the set {irrational numbers} U {1} forms a group under multiplication is investigated. The response received a rating of "5/5" from the student who originally posted the question.

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