A) \[p\wedge f\]
B) \[p\vee f\]
C) \[p\vee (\tilde{\ }p)\]
D) \[p\wedge t\]
Correct Answer: C
Solution :
[c] Whatever the truth value of p may be, \[p\vee (\tilde{\ }p)\] is always true. Hence, \[p\vee \tilde{\ }(p)\] is a tautology.
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