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Decide Whether the Statement Is True or False {7,14,21,28}{7,21}={7,14,21,28}\{7,14,21,28\} \cup\{7,21\}=\{7,14,21,28\}

Question 162

True/False

Decide whether the statement is true or false.
- {7,14,21,28}{7,21}={7,14,21,28}\{7,14,21,28\} \cup\{7,21\}=\{7,14,21,28\}

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