You are not being asked to solve a differential equation. You only have to take the derivative of the y(t) function you are given.
Just add the derivatives of the three separate terms.
The derivative of
-0.2451 cos(4t)
is
0.9804 sin(4t)
Your third term is illegible.
y(t) = -0.2451 cos 4t + 0.9804 sin 4t + e^(-3t ) (A cos〖t+B〗 sin〖t)〗
y'(t) = ?
1 answer