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.
对 A = {{ 1, 2 }, {3, 4 }} 计算 \det(A^(-1)) 。（答：。）
对 A = {{ 1, 2 }, {3, 4 }} 计算 \det(A^(-1)) 。（答：。）
Natural Language
Math Input
Extended Keyboard
