combinations of functions

[givonne]

Please help. These functions are driving me crazy!!!!

The question says: find a. (f + g)(x), b. (f-g)(x), c. (fg)(x). What is the domain of f/g?

Example: f(x) = x + 2

 

[stapel]

Without a "g(x)", there is no way to proceed on this exercise. For general information, thought, try this online lesson.

Eliz.