1.

If L-1 [f(s)] = f(t), then L-1 [f(s – a)] is

A. eat L-1 [f(s)]
B. e-at L-1 [f(s)]
C. L-1 [f(s)]
D. L-1 [f’(s)]
Answer» B. e-at L-1 [f(s)]


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