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Mathematics

Roster Form from Set-Builder Form

समुच्चय-निर्माता रूप से रोस्टर रूप

In this Class 11 Mathematics topic from the chapter Sets, students learn to convert a set described by a rule or condition in set-builder form into roster form, where its distinct elements are written explicitly inside braces. They practise interpreting the condition, identifying all permitted values, arranging elements clearly, and using ellipses only when a pattern is evident. Examples with finite and familiar infinite sets connect symbolic definitions to concrete lists while reinforcing that order does not change a set and repeated elements are written only once.

Practice questions

01 Which option is the correct set-builder form of K = {4, 8, 12, 16, 20}?

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