4. What is the number of different ways to divide a group of 20 people equally into 2 sub-groups?
4. What is the number of different ways to divide a group of 20 people equally into 2 sub-groups?
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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3. How many possible ways to assign a room for each of the 5 students, suppose we have 8
rooms available, and we want to make sure each student has his/her own room.
4. What is the number of different ways to divide a group of 20 people equally into 2 sub-groups?
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