Quick question

[solid tundra]

To calculate the Laplace transform J=L(cos(t)cos(2t)) can I consider I=L(sin(t)sin(2t))
We have I+J=L(cos(-t)) I-J=L((cos(3t)) calculate both and find I ??

[cursive flax]

1. Wait patiently for a helper to come along.
2. Once someone helps you, say thank you and close the thread with:

+close

3. Feel free to nominate the person for helper of the week in #helper-nominations
4. Do not ping the mods, unless someone is breaking the rules.
5. If you're happy with the help you got here, and the server overall, you can contribute financially as well:

[trail salmon]

Sounds ok, but why you don't just linearize sin(t)sin(2t) ?

Then use Laplace transform linearity

[solid tundra]

Simply didn’t think of it thanks !