Define the following functions and determine the domain of the resulting function :


a. (f+g)(x)   b.(f-g)(x)   c. (f.g)(x)  d. (f/g) (x)

1. f (x) = x +5
   g (x) = x-8

2 . f (x) = 2x -3
     g(x) = x+4

3. f(x) = 3x-1
    (x) = 9 -1