Machine-translated by Google. Questions are authored in English.
Top

Discussion

What is the value of 0! ?

  • A.0
  • B.1
  • C.Undefined
  • D.Infinite

Answer: B

By definition \( 0! = 1 \).

It is the value that makes \( n! = n \times (n-1)! \) work at \( n = 1 \), and it counts the single way to arrange nothing at all - which is why the combination formula needs it.

No comment is present. Be the first to comment.
Loading…

Post your comment

Please log in or register to post a comment.