Let f(x) = cos x and let Pn(x) be the Taylor approximation of degree n for f(x) around
Chapter 10, Problem 12(choose chapter or problem)
Let f(x) = cos x and let Pn(x) be the Taylor approximation of degree n for f(x) around 0. Explain why, for any x, we can choose an n such that |f(x) Pn(x)| < 109 .
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