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In the epsilon-delta definition, closeness of x to a is written as
A|f(x) - l| < delta
B0 < |x - a| < delta
Cx - a > epsilon
D|x - a| = delta
Answer & Solution
Correct answer: B. 0 < |x - a| < delta
The condition 0 < |x - a| < delta keeps x near a but excludes x = a itself.
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