College Algebra (MindTap Course List)
12th Edition
ISBN:9781305652231
Author:R. David Gustafson, Jeff Hughes
Publisher:R. David Gustafson, Jeff Hughes
Chapter8: Sequences, Series, And Probability
Section8.5: Mathematical Induction
Problem 30E
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Step 1
The proof of the given theorem can be completed as follows.
Proof:
Let M be a set with ___n___ elements. The number of ways in which __r__ elements can be chosen from M is equal to the number of ways in which subsets could be removed from M in such a way that __n - r__ elements remain.
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