Answer:
(a) (f +g)(x) = √(x-2) +√(x)
Explanation:
The sum of two functions is the sum of their definitions.
Application
(f +g)(x) = f(x) +g(x)
(f +g)(x) = √(x -2) +√(x)
Note: the radicals can only be combined if they can be reduced to a form that has the same expression under the radical. Here, that is not the case, so there is no way to simplify the sum.