1-) Show that the inverse of an increasing function is increasing, and the inverse of a decreasing function is decreasing. 2-) Find the functions f and g such that f + g is even and f- g is odd. 3-) f: R\{a} R\{b} and f(x) is one-to-one and onto. f(x) = given. What is the ==? 2x-11 3x-4 is