- #1
DBeckett91
- 6
- 0
Homework Statement
s = 8sin(125t)e^-7t
Where the value of t is unknown
The Attempt at a Solution
u = 8sin(125t) du/dt = 1000cos(125t)
v = e^-7t dv/dt = -7e^-7t
ds/dt = v*du/dt + u*dv/dt
= (e^-7t * 1000cos(125t)) + (8sin(125t) * -7e^-7t)
Just need to know if my final answer is correct and if not where I have gone wrong. Thanks for any help that may be coming my way