9 下列何者與 L{f (t)u(t − a) } 相等,其中 L{•}代表拉氏轉換(Laplace Transform)?
(A)e −as L{ af (t)}
(B)e−as L{df (t) / dt}
(C)e −as L{af (t − a)}
(D)e −as L{f (t+ a)}
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統計: A(0), B(0), C(0), D(2), E(0) #1049968
統計: A(0), B(0), C(0), D(2), E(0) #1049968