Evaluate the following limits: (a) lim (x² + x) (3x³ + 6) x-2 (b) lim vu² + 3u + 6 u--2 2x + 12 (c) Let f (x) = |x+ 6| Determine: (i) lim f (x) x-6+ (ii) lim ƒ (x) x-6- (iii) Use (i) and (ii) to deduce lim f (x) at x = 6.

College Algebra
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ISBN:9781305115545
Author:James Stewart, Lothar Redlin, Saleem Watson
Publisher:James Stewart, Lothar Redlin, Saleem Watson
Chapter2: Functions
Section: Chapter Questions
Problem 8CC: What does it mean to say that f(4) is a local maximum valueof f ?
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Evaluate the following limits:
(а) lim (2? + х) (За3 + 6)
x-2
(b)
u--2
lim vu? + 3u + 6
2x + 12
(c) Let f (x) =
|x+ 6|
Determine:
(i) lim ƒ (x)
x-6+
(ii) lim f (x)
x-6-
(iii) Use (i) and (ii) to deduce lim f (x) at = 6.
Transcribed Image Text:Evaluate the following limits: (а) lim (2? + х) (За3 + 6) x-2 (b) u--2 lim vu? + 3u + 6 2x + 12 (c) Let f (x) = |x+ 6| Determine: (i) lim ƒ (x) x-6+ (ii) lim f (x) x-6- (iii) Use (i) and (ii) to deduce lim f (x) at = 6.
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