GATE ECE 1997 | Question 1.5

Question

The Laplace Transform of $e \alpha t \cos (\alpha \; t)$ is equal to

• A. $\frac{(s-\alpha)}{(s-\alpha)^2+\alpha^2}$
• B. $\frac{(s+\alpha)}{(s-\alpha)^2+\alpha^2}$
• C. $\frac{1}{(s-\alpha)^2}$
• D. None of the above