Garlic
Gold Member
- 181
- 72
Hello PF,
1. Homework Statement
I've been having problems with the deriative of a function, although I thought I've done everything right, my solution doesn't match with the right solution. I have no clue what (or if) I've done anything wrong, or simply don't know the tricks I was supposed to use.
![Handwritten derivation on lined paper of the derivative of p0 e^(αt) (α sin(ωt) + ω cos(ωt)), with p0, α, ω constants, expanded step by step to a final line sin(ωt)cos(ωt)[α²−ω²] + αω·cos(2ωt), followed by a 'my solution' note and a line giving the expected result p0 e^(αt)[(α²−ω²) sin(ωt) + 2αω cos(ωt)].](https://www.physicsforums.com/attachments/imag1382_1-jpg.114899/ "IMAG1382_1.jpg")
1. Homework Statement
I've been having problems with the deriative of a function, although I thought I've done everything right, my solution doesn't match with the right solution. I have no clue what (or if) I've done anything wrong, or simply don't know the tricks I was supposed to use.
