So this thing would be the same thing as just making our substitution. The limit as n approaches infinity of 1 plus a over x, I mean the substitution is 1 over n, and x is, by this substitution, n times a. And this is going to be the same thing as the limit as n approaches infinity of 1 plus 1 over n to the n, all of that, to the a. And since there's no n out here, we could just take the limit of this and then take that to the a power, so that's going to be equal to the limit as n approaches infinity of 1 plus 1 over n to the nth power, all of that, to the a. And this is our definition, or one of the ways to get to e, if you watch the videos on compound interests and all of that. This is how we got to e. And if you try it on your calculator, just try larger and larger n's here, and you'll get e. So this is equal to, this inner part is equal to e. So, and we raised it to the a power, so it's equal to e to the a. So hopefully you're pretty satisfied that this limit is equal to e to the a.