If p⇒(q∨r) is false, then truth values of p,q,r are respectively
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a
T, T, F
b
T,F,F
c
F, F, F
d
F,T,T
answer is B.
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Detailed Solution
Given statement p⇒(q∨r) is false.∵p→(q∨r)=(~p)∨(q∨r)Now, by trial and error method, if truth value of p is T,q is F and r is F, then truth value of (q∨r)is F.So, truth value of [(~p)∨(q∨r)] is false.Thus, if truth value of p, e, r are T, F, F, then thestatement p→(q∨r) is false