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Calculus I Name:
Ver 1 Student ID:
Oct. 25, 2006 1. (10 pts) Identify the limits from the graph of f (x)
x→−1lim−f (x) = 1, lim
x→−1+f (x) =−2,
xlim→−1f (x) = DNE,
xlim→0−f (x) = 0, lim
x→1−f (x) = 1.
2. (10 pts) Evaluate the indicated limit, if it exists.
limx→4 √xx−4−2
= limx→4 √xx−4−2 ·√√x+2x+2
= limx→4 x−4 (x−4)(√
x+2)
= limx→4 √x+21
= 14
1
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