6 假設 A、B、C、F 都是布林變數,F= not(A or(B and C)),找出與 F 等效的布林運算式:
(A)(not A)or((not B)and(not C))
(B)(not A)and(B or C)
(C)(not A)or(B or C)
(D)(not A)and((not B)or(not C))
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統計: A(49), B(40), C(32), D(170), E(0) #3312359
統計: A(49), B(40), C(32), D(170), E(0) #3312359
詳解 (共 2 筆)
#6252279
正確答案是 (D) (not A)and((not B)or(not C))
這是透過狄摩根定律 (De Morgan's Laws) 推導出來的:
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原始運算式: F = not(A or (B and C))
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套用狄摩根定律: not(A or B) = (not A) and (not B)
- F = (not A) and not(B and C)
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再次套用狄摩根定律: not(A and B) = (not A) or (not B)
- F = (not A) and ((not B) or (not C))
因此,(D) 是與 F 等效的布林運算式。
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