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.
证明:当 lambda 是 alambda^2 + blambda + c = 0 的二重根时,函数 y_2 = xe^(lambda x) 满足 。
证明:当 lambda 是 alambda^2 + blambda + c = 0 的二重根时,函数 y_2 = xe^(lambda x) 满足 。
Natural Language
Math Input
Extended Keyboard