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.
solve 0.25 = 1.66e^(−0.22t) * cos(4.9t) for 0 to 10
solve 0.25 = 1.66e^(−0.22t) * cos(4.9t) for 0 to 10
Natural Language
Math Input
Extended Keyboard