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145 Elementos de cálculo, volumen 1<br />

Capítulo 4<br />

1. (a) −∞, (b) −∞, (c) +∞, (d)<br />

+∞, (e) 0,<br />

(f) 0, (g) asíntotas verticales:<br />

x = −2, x = 0;<br />

asíntota horizontal: y = 0<br />

3. (a) +∞, (b) −∞, (c) +∞, (d)<br />

+∞, (e) −∞, (f) −∞, (g) asíntotas<br />

verticales: x = −3, x = 3; asíntota<br />

horizontal: no hay<br />

5. (a) 2, (b) 2, (c) 2, (d) 0, (e) 0,<br />

(f) 0, (g) +∞,<br />

(h) −∞, (i) no hay<br />

7. (a) 3, (b) 3, (c) 3, (d) −∞, (e)<br />

−∞, (f) −∞,<br />

(g) +∞, (h) +∞, (i) asíntota<br />

vertical: x = 0;<br />

asíntota horizontal: no hay<br />

9. F<br />

11. F<br />

13. F<br />

15. F<br />

17. a<br />

19. c<br />

21. a<br />

23. +∞<br />

25. +∞<br />

27. +∞<br />

29. 3<br />

2<br />

31. +∞<br />

33. −∞<br />

35. +∞<br />

37. −∞<br />

39. 5<br />

2<br />

41. −∞<br />

43. +∞<br />

45. 1<br />

2<br />

47. 0<br />

49. Asíntotas verticales: x = 3,<br />

x = −3; asíntota horizontal: y = 0<br />

51. Asíntota vertical: no hay; asíntota<br />

horizontal: y = 0<br />

53. Asíntotas verticales: x = −1,<br />

x = −3; asíntota horizontal: y = 0<br />

55.<br />

−2<br />

57. A = 128<br />

3<br />

59. (a)<br />

y<br />

✻<br />

1<br />

✲ x<br />

x 10 50 100 1000<br />

f(x) 1, 31370 1, 06858 1, 03464 1, 00349<br />

(b) 1, (c) 1<br />

61. 12 √ 2<br />

Capítulo 5<br />

1. (a) x = −2, (b) x = 0, x = 2<br />

3. (a) x = −3, (b) x = −2, x = 2<br />

5. F<br />

7. V<br />

9. V<br />

11. b<br />

13. c<br />

15. c<br />

17. a<br />

19. c<br />

21. −3<br />

2<br />

23. 1<br />

25. −1<br />

3<br />

27. 1<br />

3

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