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Let f(x) = {1+x if x < −1 x2 if −1 ≤ x < 1 2−x if x ≥ 1 Sketch the graph of f. (i) Use the graph to determine the values of a for which limx→af(x) does not exist. (Enter your answers as a comma-separated list.) a =

Let f(x) = {1+x if x < −1 x2 if −1 ≤ x < 1 2−x if x ≥ 1 Sketch the graph of f. (i) Use the graph to determine the values of a for which limx→af(x) does not exist. (Enter your answers as a comma-separated list.) a =

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Let f ( x ) = { 1 + x if x < − 1 x 2 if − 1 ≤ x < 1 2 − x if x ≥ 1 Sketch the graph of f . (i) Use the graph to determine the values of a for which lim x → a f ( x ) does not exist. (Enter your answers as a comma-separated list.)
a =
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