What should be the value of laplace transform for the time-domain signal equation e-at cos ωt.u(t)?
A. 1 / s + a with ROC σ > – a
B. ω / (s + a) 2 + ω2 with ROC σ > – a
C. s + a / (s + a)2 + ω2 with ROC σ > – a
D. Aω / s2 + ω2 with ROC σ > 0
Answer:C
What should be the value of laplace transform for the time-domain signal equation e-at cos ωt.u(t)?
A. 1 / s + a with ROC σ > – a B. ω / (s + a) 2 + ω2 with ROC σ > – a C. s + a / (s + a)2 + ω2 with ROC σ > – a D. Aω / s2 + ω2 with ROC σ > 0