Let RN(x) denote the error term for the N th Taylor approximation of f(x) = cos(x) centered at a = 0. Of the choices below, which is the smallest value of N such that |RN (x)| < 0.001 for all æ in the interval [-1/2, 7/2] ? O N=15 N=3 O N=6 O N=9 O N=12

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