Finding Domains of Functions and Composite Functions In Exercises 35-42, find (a) f .g and (b) g . f. Find the domain of each function and each composite function. 35. f (x) = Vx + 4, 8(x) = x2 36. f(x) = 1/x - 5, 8(x) = x3+ 1 37. f(x) = x2+ 1. 8(x) = Vx 38. f(x) = x3/3. 8(x) = x6 39. f(x) = |xl. 8(x) = x + 6 40. f(x) = /x - 41. 8(x) = 3 - x 41. f(x) = -. 8(x) = x + 3 42. f(x) = 3 x2 - . 8(x) = x+ 1