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A function f from A to B assigns exactly one element of B to each element of A f(a) = b ≡ f assigns b ∈ B to a ∈ A f A → B ≡ f is a function from A to B A is called the domain of f B is called the codomain or range of f Example Functions R×R → R What about minus, subtraction, multiplication, division, exponentiationI f h f g f e N W P Q S ` S Y O d Z U N M S Y O N X W S U M U < F B ;That is, basic questions about whether or not an orthogonal series expansion such as (7) is actually possible were ignored Please Help To Solve This Question Answer Chegg Com Ç AfB_X X|"W{u