f(x) (4) lim x-c g(x) L M provided M0 and g(x) #0 for any a E

Calculus For The Life Sciences
2nd Edition
ISBN:9780321964038
Author:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Publisher:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Chapter4: Calculating The Derivative
Section4.1: Techniques For Finding Derivatives
Problem 4E: Find the derivative of each function defined as follows. y=5x4+9x3+12x2-7x
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Prove (4) using the result of Theorem 5.3

(4) lim
x-c
f(x) L
M
g(x)
=
provided M 0 and g(x) ‡0 for any x € A.
Transcribed Image Text:(4) lim x-c f(x) L M g(x) = provided M 0 and g(x) ‡0 for any x € A.
x-C
THEOREM 5.3. Suppose that A CR, f: A → R, and c is a limit point of A. Then lim f(x) = Lif
and only if, for every sequence (an)
A for which each an c and an →c, we have f(an) → L.
Transcribed Image Text:x-C THEOREM 5.3. Suppose that A CR, f: A → R, and c is a limit point of A. Then lim f(x) = Lif and only if, for every sequence (an) A for which each an c and an →c, we have f(an) → L.
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