MCQ
n! का मान है-
  • n × n - 1!
  • B
    (n - 1 ) × n!
  • C
    n(n - 1)!
  • D
    उपर्युक्त में से कोई नहीं

Answer

Correct option: A.
n × n - 1!
(A) n × n - 1!

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