1-24 Counting These exercises involve counting.
19-22 ■ Anagrams An anagram of a word is a permutation of the letters of that word. For example, anagrams of the word triangle include griantle, integral, and tenalgir. Find the number of different anagrams of the given word.
The number of different anagrams of the word “BLOB”.
A permutation of a set of objects is an ordering of these objects. If the set has objects, then the number of ways of ordering the -element subsets of the set is denoted and is called the number of permutations of objects taken at a time.
Consider the given word.
The number of letters are and number of letters to be ordered are .
Substitute for and for in equation
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