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.
Det {{e^(-x),e^(2x)*Sin[3x],e^(2x)*Cos[3x]},{-e^(-x),e^(2x)*(2Sin[3x]+3Cos[3x]),-e^(2x)*(3Sin[3x]-2Cos[3x])},{e^-x,-e^(2x)*(5Sin[3x]-12Cos[3x]),-e^(2x)*(12Sin[3x]+5Cos[3x])}}
Natural Language
Math Input
Extended Keyboard
Examples
Upload
Random