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.
确定 y = 1/x 在点 x = 1 处的切线方程。
确定 y = 1/x 在点 x = 1 处的切线方程。
Natural Language
Math Input
Extended Keyboard
