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A92 |||| APÉNDICE I RESPUESTAS A EJERCICIOS DE NÚMERO IMPAR<br />

1<br />

1<br />

51. 5x 2 1 53. 6 sen 3x 1<br />

4 senx 2 cosx 2 C<br />

18 sen 9x C<br />

π<br />

1<br />

ƒ<br />

F<br />

F<br />

_π<br />

π _2 2<br />

f<br />

EJERCICIOS 7.3 & PÁGINA 472<br />

1<br />

1. sx 2 99x C 3. 3 x 2 18sx 2 9 C<br />

5. 24 s38 1 4 7. s25 x 2 25x C<br />

1<br />

9. ln(sx 2 16 x) C 11. 4 sen 1 2x 1 2 xs1 4x 2 C<br />

1<br />

13. 6 sec 1 x3 sx 2 92x 2 C<br />

1<br />

15. 16 pa 17.<br />

9<br />

19. ln 21.<br />

9<br />

4 sx 2 7 C<br />

(s1 x 2 1)x s1 x 2 C<br />

500 p<br />

23. 2 sen 1 x 23 1 2x 2s5 4x x 2 C<br />

25. sx 2 x 1 1 2 ln sx 2 x 1 x 1 2 C<br />

1<br />

27. 2x 1sx 2 2x 1 2 ln x 1 sx2 2x C<br />

1<br />

29. 4 sen 1 x 2 1 4 x 2 s1 x 4 C<br />

1<br />

33. 6 (s48 sec 1 7) 37. 0.81, 2; 2.10<br />

41. rsR 2 r 2 r 2 2 R 2 arcsenrR 43.<br />

EJERCICIOS 7.4 & PÁGINA 481<br />

A<br />

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

x 3 B<br />

3x 1<br />

A<br />

x B x C 2 x Dx E<br />

3<br />

3. (a)<br />

x 2 4<br />

5. (a) 1 A<br />

x 1 B<br />

x 1 Cx D<br />

x 2 1<br />

At B<br />

(b)<br />

t 2 1 Ct D<br />

t 2 4 Et F<br />

t 2 4 2<br />

7. x 6 ln x 6 C<br />

9. 2 ln x 5 ln x 2 C 11.<br />

7<br />

13. 15. 6 ln 2 3<br />

27<br />

17. 5 ln 2 9 5 ln 3 (o 9 5 ln 8 3)<br />

19. 1<br />

21.<br />

23.<br />

25.<br />

27.<br />

29.<br />

31.<br />

a ln x b C 1<br />

1<br />

2x 2 2 ln x 2 4 2 tan 1 x2 C<br />

2 ln x 1x 3 ln x 2 C<br />

ln x 1 1 2 lnx 2 9 1 3 tan 1 x3 C<br />

1<br />

2 lnx 2 1 (1s2 ) tan 1 (xs2 ) C<br />

1<br />

1<br />

2 lnx 2 2x 5 3 2 tan x 1 C<br />

2<br />

1<br />

3 ln x 1 1 6 lnx 2 x 1 1 2x 1<br />

tan1<br />

s3<br />

1<br />

4 ln 8 3<br />

36 ln x 5 1 6<br />

33. 35.<br />

_π<br />

2 4<br />

55. 0 57. 1 59. 0 61. 63.<br />

63. s 1 cos 3t3<br />

2s2 5 2<br />

A<br />

x <br />

B<br />

x 1 <br />

1<br />

x 5 1<br />

36 ln x 1 C<br />

1<br />

16 ln x 1 32 lnx 2 4 <br />

2 ln 3 2<br />

1<br />

2 2 Rr 2<br />

C<br />

x 1 2<br />

C<br />

s3<br />

1<br />

8x 2 4 C<br />

1 7<br />

37. 8 s2 tan x 2 3x 8<br />

<br />

s2 4x<br />

39. ln sx 1 1<br />

sx 1 1<br />

4x 6 C<br />

C<br />

3<br />

41. 2 ln 25<br />

43. 10 x 2 1 53 3 4 x 2 1 23 9<br />

C<br />

45. 2sx 3s<br />

47. ln x 6s e x 2<br />

x 6 ln s 6 x 1 C<br />

2<br />

C<br />

e x 1<br />

49. ln tan t 1 ln tan t 2 C<br />

51. (x 1 2x 1<br />

2) lnx 2 x 2 2x s7 tan<br />

1 C<br />

s7<br />

53. 1 2 ln 3 0.55<br />

1<br />

55. 59. 5 ln 2 tanx2 1<br />

1<br />

2 ln <br />

tanx2 2<br />

C<br />

x<br />

C<br />

61. 4 ln 1 8 2 63. 1 11<br />

3 ln 2<br />

65. t ln P 1 9 ln0.9P 900 C, don<strong>de</strong> C 10.23<br />

24 110 1<br />

67. (a)<br />

4 879 5x 2 668 1<br />

323 2x 1 9 438 1<br />

80 155 3x 7 <br />

1 22 098x 48 935<br />

260 015 x 2 x 5<br />

(b)<br />

4 822<br />

11 049<br />

260 015 lnx 2 x 5 <br />

El sistema computarizado <strong>de</strong> álgebra omite los signos <strong>de</strong> valor obsoleto<br />

y la constante <strong>de</strong> integración.<br />

EJERCICIOS 7.5 & PÁGINA 488<br />

1.<br />

3.<br />

5. 4 ln 9 7. e4<br />

e 4<br />

9.<br />

243<br />

5 ln 3 242<br />

25 11.<br />

13.<br />

1<br />

15.<br />

17.<br />

4 879 ln 5x 2 334<br />

323 ln 2x 1 <br />

sen x 1 3 sen 3 x C<br />

sen x ln csc x cot x C<br />

8 cos 8 1 6 cos 6 C (o 1 4 sen 4 1 3 sen 6 1 8 sen 8 C)<br />

xs1 x 2 C<br />

1<br />

4 x 2 1 2 x sen x cos x 1 4 sen 2 x C<br />

(o 1 4 x 2 1 4 x sen 2x 1 8 cos 2x C)<br />

19. e e x C 21. x 1 arctan sx sx C<br />

4 097<br />

23. 25. 3x 23<br />

3 ln x 4 5 45<br />

3 ln x 2 C<br />

27. x ln 1 e x C 29. 15 7 ln 2<br />

31.<br />

1 7<br />

sen 1 x s1 x<br />

33. 2 sen 2 C<br />

x 1 x 1 s3 2x x<br />

2 2<br />

2 C<br />

35. 0 37. 8 1 4 39. ln sec u 1 ln sec u C<br />

2<br />

41. C 43. 31 e x 32 C<br />

45. 1 3 x 3 1e x 3 C<br />

47. ln <br />

49. 51. ln s4x 2 1 1<br />

ln x 1 3x 11 3 2 x 1 2 1 3 x 1 3 C<br />

s4x 1 1 C<br />

C<br />

s4x 1 1 2x<br />

1<br />

53.<br />

m x 2 coshmx 2 m x senhmx 2 2 m coshmx C<br />

2<br />

tan 1 2 2 ln sec <br />

3 146<br />

80 155 ln 3x 7 <br />

75 772 2x 1<br />

tan1 C<br />

260 015s19 s19<br />

1<br />

2 lnx 2 4x 5 tan 1 x 2 C

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