f(x) = sqrt (x-2), a = 2 (a) show that f is one-to-one. (b) Use Theorem 7 to find s f 21d9sad. (c) Calculate f 21sxd and state the domain and range of f 21. (d) Calculate s f 21d9sad from the formula in part (c) and check that it agrees with the result of part (b). (e) Sketch the graphs of f and f 21 on the same ax
