SOLUTION: Sylvia has selected 20 songs for her live concert. how many permutation are there for her songs?

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Question 1175164: Sylvia has selected 20 songs for her live concert. how many permutation are there for her songs?
Answer by ikleyn(52778) About Me  (Show Source):
You can put this solution on YOUR website!
.

    20! = 20*19*18*17* . . . *2*1.


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On Permutations,  see introductory lessons
    - Introduction to Permutations
    - PROOF of the formula on the number of Permutations
    - Simple and simplest problems on permutations
    - Special type permutations problems
    - Problems on Permutations with restrictions
    - OVERVIEW of lessons on Permutations and Combinations
in this site.

Also,  you have this free of charge online textbook in ALGEBRA-II in this site
    - ALGEBRA-II - YOUR ONLINE TEXTBOOK.

The referred lessons are the part of this online textbook under the topic  "Combinatorics: Combinations and permutations".


Save the link to this textbook together with its description

Free of charge online textbook in ALGEBRA-II
https://www.algebra.com/algebra/homework/complex/ALGEBRA-II-YOUR-ONLINE-TEXTBOOK.lesson

into your archive and use when it is needed.