Assume isBusy and isHappy have been defined to be Boolean variables.Which of the following conditions has the same value as !isBusy || isHappy?
A)!(isBusy || !isHappy)
B)isBusy && !isHappy
C)!(isBusy && !isHappy)
D)isBusy || !isHappy

Question

Quizplus · Accepted Answer

The expression !isBusy || isHappy means "not busy or happy". The equivalent expression using De Morgan's laws is "not (busy and not happy)", which is option C: !(isBusy && !isHappy). This is because De Morgan's laws allow us to distribute the negation across the conditions inside the parentheses, flipping the AND to OR and negating each internal condition.

Assume IsBusy and IsHappy Have Been Defined to Be Boolean