Find the number of arrangements taking all the letters of the word CONTACT ans. 1400 1220 1260 1136
Question
Solution 1
The word "CONTACT" has 7 letters in total. However, the letter "T" is repeated twice.
The formula for permutations of a multiset (a set where members can appear more than once) is:
n! / (r1! * r2! * ... * rk!)
where:
- n is the total number of items,
- r1, r2, ..., rk are the numbers of each typ Knowee AI StudyGPT is a powerful AI-powered study tool designed to help you to solve study prob
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