SOLUTION: The following question was answered by you, however, I am having a difficult time understanding the work that was provided. It was confusing - please try again.
Write the follo
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Question 1177140: The following question was answered by you, however, I am having a difficult time understanding the work that was provided. It was confusing - please try again.
Write the following expression without using the factorial symbol...
nC3+nC2+nC1
Found 2 solutions by ikleyn, greenestamps:
Answer by ikleyn(52786) (Show Source): You can put this solution on YOUR website!
.
nC3 =
nC2 =
nC1 = n
----------------
These symbols nCk define the number of COMBINATIONS of n items taken k at a time.
On Combinations, see introductory lessons
- 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.
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.
Answer by greenestamps(13200) (Show Source): You can put this solution on YOUR website!
removed....
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