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Qus: Which of the following Boolean expressions is not logically equivalent to the other three?

Qusनिम्नलिखित में से कौन सा बुलियन एक्सप्रेशन लॉज़िकली रूप से अन्य तीन के बराबर नहीं है?


A. not(-6<0 or-6>10)
B. -6>=0 and -6<=10
C. not(-6<10 or-6==10)
D. not(-6>10 or-6==10)


Solution
D. not(-6>10 or-6==10)



Explanation
The expression not(-6<0 or -6>10) returns the output False. The expression -6>=0 and -6<=10 returns the output False. The expression not(-6<10 or -6==10) returns the output False. The expression not(-6>10 or -6==10) returns the output True.
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