Answer:
a) Yes applicable, x(∞) = 0
b) Yes applicable, x(∞) = 0
Explanation:
Final Value Theroem indicates that final value of x(t) can be found by Laplace Transform X(s) as follows:
[tex]x(\infty)= \lim\limits_{s \to0} sX(s)[/tex]
[tex]a) X(s)= \frac{s}{3s+7}[/tex]
Since the pole is at left side, FVT is applicable
[tex]x(\infty)= \lim\limits_{s \to0} s\frac{s}{3s+7}=0[/tex]
[tex]b) X(s)= \frac{10}{3s^2+7s+4}[/tex]
[tex]\frac{10}{3s^2+7s+4}= \frac{10}{(3s+4 )(s+1)}[/tex]
Since the poles are at left side, FVT is applicable
[tex]x(\infty)= \lim\limits_{s \to0} s \frac{10}{(3s+4 )(s+1)}=0[/tex]