Find the quadratic approximation of f at x = 0.f(x) = sin ln(9x + 1)

A. p2(x) = 1 + 9x + x2
B. p2(x) = 1 - 9x + x2
C. p2(x) = 9x - x2
D. p2(x) = 9x + x2

Answer: C

Mathematics

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