SOLUTION: How many ways can you choose a seven letter password from seven different letters if the letters cannot repeat

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Question 1081832: How many ways can you choose a seven letter password from seven different letters if the letters cannot repeat
Answer by ikleyn(52794)   (Show Source): You can put this solution on YOUR website!
.
7! = 1*2*3*4*5*6*7 = 5040.

On permutations, see the lessons
    - Introduction to Permutations
    - PROOF of the formula on the number of Permutations
    - Problems on Permutations
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".


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