Consider the function f(x) whose second derivative is fâ³(x)=6x+9sin(x). If f(0) = 2 and f'(0) = 4, what is f(x)?
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A) Let f(x)=(6xâ6x^3)(4+âx). Find fâ²(x).
fâ²(x)=
B) Find the derivative of the function f(x)=â3x+2. ------>{radical 3x+2} fâ²(x)=