How to evaluate 8P7?

Lucian Maddox 2022-06-29 Answered
How to evaluate 8P7?
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Answers (1)

Giovanna Erickson
Answered 2022-06-30 Author has 14 answers
Step 1
Using the definition of using the definition of n P r = n ! ( n - r ) !
where where n ! = n ( n - 1 ) ( n - 2 ) ... ... × 1
Step 2
8 P 7 = 8 ! 1 !
× × x = 8 × 7 × 6 × 5 × 4 × 3 × 2 1
× × x = 40320

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