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.
位置 s(t) = t^2 + 5t 米。通过导数定义计算 t = 3 秒时的瞬时速度。(答: 11 米/秒。)
位置 s(t) = t^2 + 5t 米。通过导数定义计算 t = 3 秒时的瞬时速度。(答: 11 米/秒。)
Natural Language
Math Input
Extended Keyboard