a. By l'Hôpital's Rule, lim = lim 2 2x 2x - 1 b. lim x sin x = lim f(x)g(x) = lim f'(x) lim g'(x) = ( lim 1)(lim cos x) = 1. - 2r? + x – 2 x? - 1 3x - 4x + 1 lim c. lim 2r ³ – 2r² + x – 2 x² – 4 3x - 4x + 1 = lim 2 d. lim 2 2r

College Algebra
7th Edition
ISBN:9781305115545
Author:James Stewart, Lothar Redlin, Saleem Watson
Publisher:James Stewart, Lothar Redlin, Saleem Watson
Chapter3: Polynomial And Rational Functions
Section3.6: Rational Functions
Problem 2E
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Explain why or why not Determine whether the following state-
ments are true and give an explanation or counterexample.

a. By l'Hôpital's Rule, lim
= lim
2 2x
2x - 1
b. lim x sin x = lim f(x)g(x) =
lim f'(x) lim g'(x) = ( lim 1)(lim cos x) = 1.
- 2r? + x – 2
x? - 1
3x - 4x + 1
lim
c. lim
2r
³ – 2r² + x – 2
x² – 4
3x - 4x + 1
= lim
2
d. lim
2
2r
Transcribed Image Text:a. By l'Hôpital's Rule, lim = lim 2 2x 2x - 1 b. lim x sin x = lim f(x)g(x) = lim f'(x) lim g'(x) = ( lim 1)(lim cos x) = 1. - 2r? + x – 2 x? - 1 3x - 4x + 1 lim c. lim 2r ³ – 2r² + x – 2 x² – 4 3x - 4x + 1 = lim 2 d. lim 2 2r
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