Question: 9 Find the formula for f(x) for the function f. First indicate how the domain should be restricted so f has an inverse. f(x) =

Find the formula for f(x) for the function f. First indicate how the domain should be restricted so f has an inverse. f(x) = 7 cos 4x OAl OSX ST; f-1(x) = =cos 1 (4] OBJOSXS "; f-(x) = 4cost] (#) OC) Osx s n; f (x) = =cos 1 OD) OsX s ; f(x) = _cos-1

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