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y r 2 2e r 17. 19. y 2v 1sv<br />

49. (a) sec 2 x 1cos 2 x (b) sec x tan x sen xcos 2 x<br />

APÉNDICE I RESPUESTAS A EJERCICIOS DE NÚMERO IMPAR |||| A73<br />

21.<br />

(c) cos x sen x cot x 1csc x<br />

ft <br />

4 t12<br />

23. fx ACe x B Ce x 2<br />

2 st 2<br />

51. 1<br />

25. f x 2cxx 2 c 2<br />

27. x 4 4x 3 e x ; x 4 8x 3 12x 2 e x<br />

EJERCICIOS 3.5 & PÁGINA 203<br />

29.<br />

2x 2 2x<br />

1. 4 cos 4x 3. 20x1 x 2 9 5. e sx (2sx)<br />

1 2x ; 2<br />

2 1 2x 3<br />

7. Fx 10xx 4 3x 2 2 4 2x 2 3<br />

31. y 1 33. ; y 1 2 3x 2<br />

9. 11. tt 12t 3<br />

2 x 1 2 y 2x<br />

2 x<br />

Fx <br />

35. (a) y 1 (b)<br />

41 2x x 3 34<br />

t 4 1 4<br />

2 x 1<br />

1.5<br />

13. y 3x 2 sena 3 x 3 15. y e kx kx 1<br />

17. tx 41 4x 4 3 x x 2 7 17 9x 21x 2 <br />

37. (a) e x x 3x 4 39. xe x , x 1e x<br />

31. y 2 sen x ln 2 cos x 33.<br />

1<br />

41. 43. (a) 16 (b) 20 4<br />

9 (c) 20<br />

33. y 12 cos x sen x 1 cos 2 x 5<br />

y 4 sec 2 x tan x<br />

(_1, 0.5)<br />

19. y 82x 5 3 8x 2 5 4 4x 2 30x 5<br />

4 4<br />

21. y 12xx2 1 2<br />

x 2 1 4 23. y cos x x sen xe x cos x<br />

0.5<br />

25. Fz 1z 1 12 z 1 32 <br />

27. y r 2 1 32 29. y 2 cos tan 2x sec 2 2x<br />

45. 7 47. (a) 0 (b) 2 3<br />

49. (a) (b)<br />

35. y <br />

4e2x 1 e2x<br />

y xtx tx y tx xtxtx 2<br />

sen<br />

1 e 2x 2<br />

1 e 2x<br />

(c) y xtx txx 2 37. y 2 cos cotsen csc 2 sen <br />

51. Dos, (2 s3, (1 s3)2)<br />

39. f t sec 2 e t e t e tan t sec 2 t<br />

53. $1.627 miles <strong>de</strong> millonesaño 55. (c) 3e 3x<br />

41. f t 4 sene sen2 t cos e sen2 t e sen2 t sen t cos t<br />

57. fx x 2 2xe x , f x x 2 4x 2e x ,<br />

43. tx 2r 2 pln a 2ra rx n p1 a rx<br />

fx x 2 6x 6e x , f 4 x x 2 8x 12e x ,<br />

45. y p costan px sec2 px sen ssentan px<br />

f 5 x x 2 10x 20e x ; f n x x 2 2nx nn 1e x<br />

2ssentan px<br />

EJERCICIOS 3.3 & PÁGINA 195<br />

47.<br />

49.<br />

hx xsx 2 1, hx 1x 2 1 32<br />

e ax b cos bx a sen bx; e ax a 2 b 2 sen bx 2ab cos bx<br />

1. f (x) 6x 2 sen x 3. f (x) cos x 1 51. y 20x 1 53. y x <br />

2 csc 2 x<br />

55. (a) y 1 2 x 1 (b)<br />

3<br />

5. t(t) 3t 2 cos t t 3 sen t<br />

57. (a) fx 2 2x<br />

21. 23.<br />

s2 x<br />

y 2s3x 2 y x 1<br />

2 3 s3p 2<br />

59. 2 2n, 3, 32 2n, 1, n un entero<br />

25. (a) y 2x (b) 3π<br />

61. 24 63. (a) 30 (b) 36<br />

2<br />

3<br />

65. (a) 4 (b) No existe (c) 2<br />

7. h() csc cot e<br />

cot csc 2<br />

(0, 1)<br />

9. 11. f sec tan <br />

y 2 tan x x sec2 x<br />

2 tan x 2<br />

1 sec 2<br />

_3 3<br />

13. y x cos x 2 sen xx 3<br />

15. f (x) e x csc xx cot x x 1<br />

_1.5<br />

π<br />

” , π’<br />

2<br />

67. (a) Fx e x f e x (b) Gx e f x f x<br />

69. 120 71. 96 75. 2 50 cos 2x<br />

77. vt 5 2 cos10t cms<br />

0<br />

π<br />

dB<br />

79. (a) 7p 2p t<br />

cos<br />

27. (a) sec x tan x 1<br />

dt 54 5.4<br />

(b) 0.16<br />

29. u cos u sen u; 2 cos u u sen u<br />

81. vt 2e 1.5t 2 cos 2t 1.5 sen 2t<br />

31. (a) f (x) 1 tan xsec x (b) f (x) cos x sen x<br />

2<br />

15<br />

33. 2n 1 1 3, n un entero<br />

35. (a) vt 8 cos t, at 8 sen t<br />

s<br />

√<br />

(b) 4s3, 4, 4s3; a la izquierda<br />

0 2 0 2<br />

37. 5 piesrad 39. 3 41. 3 43. sen 1<br />

45.<br />

1<br />

47. s2<br />

1<br />

7<br />

2

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