0 votes
19 views

The unilateral Laplace transform of $f(t)$ is $\frac{1}{s^2+s+1}$. The unilateral Laplace transform of $tf(t)$ is

1. $-\frac{s}{(s^2+s+1)^2}$
2. $-\frac{2s+1}{(s^2+s+1)^2}$
3. $\frac{s}{(s^2+s+1)^2}$
4. $\frac{2s+1}{(s^2+s+1)^2}$

edited | 19 views

Answer: