Use the following definitions. Assume f exists for all x near a with x > a. We

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Use the following definitions. Assume f exists for all x near a with x > a. We say the limit of f(x) as x approaches a from the right of a is L and writelim f(x) = L, х- хэа , if for any ε > 0 there exists δ > 0 such that

|| f(x) – L| < ɛ whenever 0 < x – a < 8.

Assume f exists for all x near a with x < a. We say the limit of f(x) as x approaches a from the left of a is L and writeif for any ε > 0 there exists δ > 0 such that

Why is the last inequality in the definition
of namely, 0 < |x - a| < δ, replaced with 0 < x - a < δ in the definition of

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Calculus Early Transcendentals

ISBN: 978-0321947345

2nd edition

Authors: William L. Briggs, Lyle Cochran, Bernard Gillett

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