OpenStax, Contemporary Mathematics §1.1 Basic Set Concepts · Example 7 · Combinatorics · Sets & logic
Basic Set Concepts · Example 7
Consider the set of letters in the word “happy.” Determine the best way to represent this set, and then write the set using either the roster method or set builder notation, whichever is more appropriate.
OpenStax, Contemporary Mathematics · §1.1 Basic Set Concepts · Example 7
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