Concept explainers
To evaluate:
The value of the given number.
Answer to Problem 21WE
The value of given operation is
Explanation of Solution
Given:
The order of operation
Exactly
Concept used:
Using by the formula of the permutation
Calculation:
There are
The number of ways to choose
Number of ways to pick
The number of ways to have a
Therefore,
The value of given operation is
Chapter 15 Solutions
Algebra and Trigonometry: Structure and Method, Book 2
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