Give stream of consciousness and then the final answer. Which of the following is equal to (y+1)!/y!?
Options:
(A) y-1
(B) 1+(1/y)
(C) 1
(D) y+1
(E) y
(y + 1)! = (y + 1) * x!
(y + 1)!/y! = y + 1
The final answer: (D).