2r + 3 2r? + 3 41. lim I-00 X + 7 lim 42. X--0 5x + 7 x? - 4x + 8 lim 3x 1 43. 44. lim 7x + 1 x² – 7x # + x³ 45. lim I--o X + 1 46. lim X-0o 12x + 128 sin x 47. lim (If you have a grapher, try graphing the function for –5 sxs 5.) (If you have a grapher, try graphing 1 f(x) = x(cos (1/x) – 1) near the origin to cos e - 48. lim "see" the limit at infinity.) x + sin x + 2Vx x + sin x x2/3 + x- 49. lim 50. lim 1-00 x/3 + cos'x 51. lim el cos 52. lim In 1 + 53. lim tan-x 54. lim e sin-

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter4: Polynomial And Rational Functions
Section: Chapter Questions
Problem 15T
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Limits at Infinity
Find the limits in Exercises 41–54.

2r + 3
2r? + 3
41. lim
I-00 X + 7
lim
42.
X--0 5x + 7
x? - 4x + 8
lim
3x
1
43.
44. lim
7x + 1
x² – 7x
# + x³
45. lim
I--o X + 1
46. lim
X-0o 12x + 128
sin x
47. lim
(If you have a grapher, try graphing the function
for –5 sxs 5.)
(If you have a grapher, try graphing
1
f(x) = x(cos (1/x) – 1) near the origin to
cos e -
48. lim
"see" the limit at infinity.)
x + sin x + 2Vx
x + sin x
x2/3 + x-
49. lim
50. lim
1-00 x/3 + cos'x
51. lim el cos
52. lim In 1 +
53. lim tan-x
54. lim e sin-
Transcribed Image Text:2r + 3 2r? + 3 41. lim I-00 X + 7 lim 42. X--0 5x + 7 x? - 4x + 8 lim 3x 1 43. 44. lim 7x + 1 x² – 7x # + x³ 45. lim I--o X + 1 46. lim X-0o 12x + 128 sin x 47. lim (If you have a grapher, try graphing the function for –5 sxs 5.) (If you have a grapher, try graphing 1 f(x) = x(cos (1/x) – 1) near the origin to cos e - 48. lim "see" the limit at infinity.) x + sin x + 2Vx x + sin x x2/3 + x- 49. lim 50. lim 1-00 x/3 + cos'x 51. lim el cos 52. lim In 1 + 53. lim tan-x 54. lim e sin-
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ISBN:
9781133382119
Author:
Swokowski
Publisher:
Cengage