Uh oh! Wolfram|Alpha doesn't run without JavaScript.
Please enable JavaScript. If you don't know how, you can find instructions
here
.
Once you've done that, refresh this page to start using Wolfram|Alpha.
证 limit (1 + 1/x)^x 在 x in N 单调递增。
证 limit (1 + 1/x)^x 在 x in N 单调递增。
Natural Language
Math Input
Extended Keyboard