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Simplifying Factorial Notation

100

Simplify: 2!

2

200

Simplify: 3!

6

300

Simplify: 4!

24

Circular Permutation

100

What is the value of "n" in the problem: How many ways can 8 different flags be arranged around a circular stand?

n = 8

200

How many ways can 3 students arrange themselves in a circle for a photo?

2

300

How many ways can 5 different flags be arranged around a circular stand?

24

Formula used in Permutation

100

What is the symbol used in factorial notation?

!

200

What is the formula for circular permutation?

P = (n-1)!

300

What is the formula for the permutation of n objects taken r at a time?

P = n!/(n-r)!