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Chapter 13: Q. 13 (page 855)

Find the value of each permutation.

P(8,4)

Short Answer

Expert verified

The value of the given permutation is 1680.

Step by step solution

01

Step 1. Given information.

The given permutation is P(8,4).

02

Step 2. Determine the value of the permutation.

We know that,

P(n,r)=n!(n-r)!

The given permutation can be written as:

P(8,4)=8!(8-4)!=8!4!=8脳7脳6脳5脳4!4!=8脳7脳6脳5=1680

03

Step 3. Conclusion.

The value of the given permutation is 1680.

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