- #1
Twinflower
- 109
- 0
Homework Statement
What is the stationary amplitude to the sine wave?
[tex]4 \frac{dy}{dt} + 3y = sin(t) , y(0) = 0[/tex]
2. The attempt at a solution
I figure that the stationary solution to this eq. is found when the derivate is 0.
[tex]0+3y = sin(x)[/tex]
[tex]y = \frac{sin(x)}{3}[/tex]
The amplitude to this function is [itex]\frac{1}{3}[/itex]. The correct answer is supposed to be 0.2
So where did I take the wrong turn?