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calculo-de-una-variable-1

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A104 |||| ÁPENDICE I RESPUESTAS A EJERCICIOS DE NÚMERO IMPAR<br />

11. (a) (b) Elipse (c) y 12<br />

(d)<br />

1<br />

4<br />

(3, π)<br />

π<br />

”4,<br />

2<br />

’<br />

O (3, 0)<br />

12 3π<br />

”<br />

5<br />

,<br />

2<br />

’<br />

y=_12<br />

2.26 108<br />

25. r <br />

1 0.093 cos <br />

27. 35.64 AU<br />

29. 7.0 10 7 km<br />

31. 3.6 10 8 km<br />

REPASO DEL CAPÍTULO 10 & PÁGINA 669<br />

Preguntas <strong>de</strong> verda<strong>de</strong>ro-falso<br />

1. Falso 3. Falso 5. Verda<strong>de</strong>ro 7. Falso 9. Verda<strong>de</strong>ro<br />

13. (a) (b) Elipse (c)<br />

(d)<br />

1<br />

3<br />

9<br />

”<br />

4<br />

, π’<br />

x= 9 2<br />

3 π<br />

”<br />

2<br />

,<br />

2<br />

’<br />

9<br />

”<br />

8<br />

, 0’<br />

O<br />

3 3π<br />

”<br />

2<br />

,<br />

2<br />

’<br />

x 9 2<br />

Ejercicios<br />

1. x y 2 8y 12 3. y 1x<br />

y<br />

(0, 6), t=_4<br />

(5, 1),<br />

t=1<br />

x<br />

y<br />

(1, 1), ¨=0<br />

x<br />

15. (a) 2 (b) Hipérbola (c)<br />

(d)<br />

3<br />

1<br />

”-<br />

4<br />

, 0’<br />

”<br />

4<br />

, π’<br />

O<br />

x 3 8<br />

5. x t, y st; x t 4 , y t 2 ;<br />

x tan 2 t, y tan t, 0 t p2<br />

7. (a) 2π<br />

(b) (3s2, 3p4) ,<br />

”4, ’<br />

3<br />

(3s2, 7p4)<br />

O<br />

2π<br />

3<br />

17. (a) 2, y <br />

x=_ 3 8<br />

1 2<br />

1<br />

(2, 2s3)<br />

9. 11.<br />

π<br />

”1,<br />

2<br />

’<br />

¨= π 6<br />

_2 2<br />

y= -<br />

1 2<br />

(2, π)<br />

O<br />

3π<br />

”1,<br />

2<br />

’<br />

2<br />

1<br />

(b) r <br />

1 2sen( 34)<br />

_2<br />

e=0.4<br />

19. La elipse es casi circular<br />

don<strong>de</strong> e es cercana a 0 y se<br />

hace más alargada cuando e l 1 .<br />

En e = 1, la curva se convierte<br />

en parábola.<br />

_3<br />

_2 2<br />

e=0.6<br />

e=1.0<br />

e=0.8<br />

13. 15.<br />

1<br />

(2, π) (2, 0)<br />

O<br />

_1<br />

π<br />

”1, ’<br />

2<br />

2<br />

17. r <br />

19. 0.75<br />

cos u sen u<br />

-0.3 1.2<br />

-0.75<br />

O<br />

3π<br />

”_3, ’<br />

2<br />

r= sin ¨<br />

¨<br />

3<br />

y=<br />

2

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