Hi there!
We are given the function - 

and are told to find the limit of the function. 
The limit would be n approaches infinity, giving us an answer of -1. 
Here is how you solve this:

Divide by (n + 1)! - 

Now, we can refine the function - 

Now, just simplify. This gives us - 

We can use the rule  to simplify the whole thing to get 1. Finally, we plug it back into our second derived equation to get 1/-1, which simplifies to -1. Therefore, the answer is -1. Hope this helped and have a great day!