Question: calculus question (1-2x, if xSI S ( x) = 1-x?, if x> 1 Let f be the function given above. Which of the following must
calculus question

(1-2x, if xSI S ( x) = 1-x?, if x> 1 Let f be the function given above. Which of the following must be true? I. lim f(x) exists. II. f is continuous at x = 1. III. f is differentiable at x = 1 . (A) I only (B) I and II only (C) II and III only (D) I, II, and
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