Questão 1703588

\(h\left(t\right)\ =\ \frac{1}{3}e^{-\frac{1}{3}t}u\left(t\right)\)

\(h\left(t\right)\ =\ 3e^{-3t}u\left(t\right)\)

\(h\left(t\right)\ =\ -\frac{1}{3}e^{\frac{1}{3}t}u\left(-t\right)\)

\(h\left(t\right)\ =\ \frac{2}{3}e^{-\frac{1}{3}t}u\left(t\right)\)

\(h\left(t\right)=\frac{1}{3}e^{\frac{1}{3}t}u\left(t\right)\)