4 The functions f and g are defined as f(x) = 1 g(x) = 7-x %3D X+2' f a) Find the domain of f, g, f+ g, f-g, fg, ff, 6. and f b) Find (f + g)(x). (f – g)(x). (fg)(x). (M)(x). x). (x), and

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Domain

In simple mathematics terms, a domain is defined as the space on which all the possible inputs for the function will lie. It can also be expressed as a set of departures for the required function.