SOLUTION: Find the number of permutations of the numbers 1,2,3 and 4 taken two at a time
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Question 1152555: Find the number of permutations of the numbers 1,2,3 and 4 taken two at a time
Found 2 solutions by MathLover1, ikleyn:
Answer by MathLover1(20849) (Show Source): You can put this solution on YOUR website!
Number of permutations ( things taken at a time).
Answer by ikleyn(52778) (Show Source): You can put this solution on YOUR website!
.
Formulation in your post is 1) INCORRECT and 2) MAKES no SENSE.
It is because the term PERMUTATION never goes in combination with the words "taken two at a time".
In combinations with words "taken two at a time" goes the term COMBINATIONS.
On Permutations and Combinations, see introductory lessons
- PROOF of the formula on the number of Permutations
- Problems on Permutations
- Introduction to Combinations
- PROOF of the formula on the number of Combinations
- Problems on Combinations
- OVERVIEW of lessons on Permutations and Combinations
in this site. // I listed here the "introductory" lessons only . . .
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.
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