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Determine whether each of the following statements are propositions or not. If statement is a proposition, determine its truth value. (If it does not have a truth value, put NA)
Statement
1 f(x) = sqrt(x)/(x+1) is a rational function. 2 What is the domain of the function?
3 I am lying.
4 It is not the case that sqrt(2) is a rational number.​