43. 如下圖,若V(t) = 10 sin( 377? + 30°) + 10 cos 377t,則
為X瓦特;若V(t) =10 sin( 377? + 30°) + 10 cos 754t,則
為Y瓦特,X及Y各為?
(A)X=30,Y=20
(B)X=30,Y=30
(C)X=20,Y=30
(D)X=20,Y=20
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統計: A(47), B(51), C(58), D(29), E(0) #2949610
統計: A(47), B(51), C(58), D(29), E(0) #2949610