4. Consider the functions k(x)= 27* and m(x) = 9 · 3ª. (a) Are k(x) and m(x) the same function? Explain. (b) Write m(x) as a composition of f(x) = 3" and another function b(x), so that m(x) = b(f(x)). Give the function b(x). %3D (c) Write k(x) as a composition of f(x) = 3ª and another function d(x), so that k(x) = d(f(x)). Give the function k(x).

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