2. for this problem, all functions are real-valued. a real root for a function / is a real number such that ) = 0. for each of the following, write down the negation in english. which is true, the original statement, or the negation? why or why not? (a) every function has a real root. (b) there is a number that is the real root of every function. (c) every real number is the root of some function. (d) some function has every real number as a root.