The inverse Laplace transform of F(s) = ( frac{2}{s+c} e^{-bs} ) is _

1.	The inverse Laplace transform of F(s) = ( frac{2}{s+c} e^{-bs} ) is _________________
A.	2 e<sup>-k (t-b)</sup>
B.	2 e<sup>-k (t-b)</sup> u (t-b)
C.	e<sup>-k (t-b)</sup> u (t-b)
D.	2 u (t-b)
Answer» C. e<sup>-k (t-b)</sup> u (t-b)

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