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Chapter 13: Q. 15 (page 855)

Use the formulaC(n,r)=n!(n-r)!r! to find the value of each combination.

C(8,2)

Short Answer

Expert verified

The value of the given combination is 28.

Step by step solution

01

Step 1. Given information.

The given combination is C(8,2).

02

Step 2. Determine the value of the given combination.

Using the formula, the given combination can be written as:

C(8,2)=8!(8-2)!2!=8!6!2!=8脳7脳6!6!脳2脳1=28

03

Step 3. Conclusion.

The value of the given combination is 28.

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