The Laplace transform of eαt cos (αt) is equal to
A. $${{\left( {s - \alpha } \right)} \over {{{\left( {s - \alpha } \right)}^2} + {\alpha ^2}}}$$
B. $${{\left( {s + \alpha } \right)} \over {{{\left( {s + \alpha } \right)}^2} + {\alpha ^2}}}$$
C. $${1 \over {{{\left( {s - \alpha } \right)}^2}}}$$
D. None of these
Answer: Option A
This Question Belongs to Electronics And Communications Engineering >> Signal Processing
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