( Please help me solve these 3 questions, please make the answer on paper with very good hand-writing. )

a) Show that (a V b ) c) ) ((1 Ab > c) is a tautology but its converse is contingency. b) If p > q is false, what is the truth value of ((p) A q) (> (p V q)? Explain your answer. 6) Let L(x) be the statement "x visited London", let P(x) be the statement "x visited Paris" and let N (x) be the statement "x visited New Yorm". Express the statement \"None of your friends visited London, Paris and New York.\" in terms of C (x), D(x), F (x), quantiers, and logical connectives where the domain consists of all your friends