Which of the following is equal to (x+1)!/x!?\nOptions:\n(A) x-1\n(B) 1+(1/x) \n(C) 1\n(D) x+1\n(E) x OK. Let's think. Some random thoughts first:
User
(x + 1)! = (x + 1) * x!\n(x + 1)!/x! = x + 1 The answer: (D).
Assistant