Question

What is 6P6 ? 36 46,656 720 1

Answer 1

9514 1404 393

Answer:

  6P6 = 720

Step-by-step explanation:

The notation nPk is shorthand for ...

  n!/(n-k)!

So your expression

  6P6 = 6!/(6-6)! = 6!/0! = 720/1 = 720

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The ! is pronounced "factorial." The factorial of a positive integer is the product of that integer and every smaller positive integer. 0! is defined as 1.

  6! = 6·5·4·3·2·1 = 720