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200910-


2009 10-

1.2009 A O()A P (mn) P

A(m2n1) B(m2n1) C(m2n1) D(m2n1) 2. 2009 OABC

AOC = 45 OC = 2 B
A ( 2 1) B (1 2) C ( 2 + 11)

D (1 2 + 1)

2009 p (3 5) x A (- 3, - 5) B (5, 3) C (- 3,5)

D (3,5)

4.2009 ABO O 90 ABO A

y
4

B A
-3 -2 -1

3 2 1 0 1 2 3

x

11 A31 B32 C23 D13

5.(2009 )6 P(m1-2m) m A 0 < m <
1 2

B ?

1 <m<0 2

C m < 0

D m >

1 2

7.2009 AB 20 01 AB A1 B1 a + b A2 B3

C4

D5

y

B1 (a 2) B (0 1)
O

A1 (3b) A(2 0)
x

8.2009 A (2,2) P x APO P A(40) y 2 1 x -1 0 1 2 3 4 A B1.0 C-2 2 0 D20 y

OA OA O 9. 2009 A ( ab) O 90 OA1 A1 A ( ?ab) B (a b) ? C ( ?ba ) D (b a ) ?

10. 2009  3 1 ABC ABC B x D A ( 0 1) ? B (11) C ( 2 1) ? D (1 1) ?

13.2009 ¦ ֧ A B C D 14.2009 P x y y =

1 + ? x P x2

A B

C

D

16. 2009 k 2009 200 v t
O ? A ? B ? C A(t1 ,350) B (t 2 ,350) C (

17 ,0) OABC 70 80

t 2 ? t1 =

B 3 16 C 7 80 D 31 160

A 1 5

17. 2009 AB

A ( ?4 1)B (11) AB AB A ( ?2) ? 2
B
A ( 4) 3 B ( 3) 4 C ( ?1 2 ) ? D ( ?2 1) ?

18. 200912.Msin50cos70 200912. A B C D

19. 2009 P21 y A21 B21 C21

D21

5) 20. (2009 ) A(2 B y B
B (?2 5) ? C ( ?2 5) D (2 5) ?

A ( ?5 2) ?

22. 09 y = ? x + 1

A B C D 1. 2009 P 2 1 P ?1 3 P ______ 22009 (1 2) ( ?5 2) ? ______________

4.2009 ABCABC 5 B 90 ABC ABC A44 B11 A 6. 2009 ABC A ( ?3 ___________ 5)

A

y

B

C

O

x

7. 2009 14. P ?2 1 14.

9. 22009 A13 2 2 Bab ab

4) 7) 10. 2009 CD AB A( ?1 C (4
B ( ?4 1) D ?

? 11. 2009 11 P (2 3) P
12. (2009 ) y = ax + bx + c a 0 x = 1
2

( ?1y1 )2y2 ) y1 y2 (
y1
_ y2 ><=

15. 2009 A (14) OA O 90 OA A

16. 2009 A( x ? 1? x) 2 x 17. 2009 ABC ABC ˦

y
11 A 10 9 8 7 6 5 A B 4 C 3 B C 2 1 O 1 2 3 4 5 6 7 8 9 10 1112 x 21.(2009 ) 1

ABCDE A 90 2 ˦ CD
A B C E D

22.2009 2ABC 4 A C B A

2 23. 2009 CD AB A( ?1 4)

C (4 B (?4 1) D 7) ?




12009 P ? 2 ? P x y A

? ?

3? 2?

k k x > 0 N PM AN y = x > 0 M x x AM PN = 4
y = y M A O N P x

1 k 3 2 APM 3 2. 2009 ABC ֦ 8 1 .

(1)ABC 2 A1B1C1 A1B1C1 (2)ABC (-1,0) 180A2B2C2A2B2C2 (3)A1B1C1 A2B2C2 . 4. 3) 4.2009 ABC A( ?2

B (?3 C (?1,1) 2)
1 ABC 3 1

A1 B1C1
2 A1 B1C1 180 A2 B2C2 3 ABC ABC ___________ 4 CC1C C2 y 4 A 3 B 2 C 1
?1

?4 ? 3 ? 2 ? 1 O

1 C 2

3

4

x

?2 ?3 ?4

B A

6. 2009

OAB

AOB = 90 OA = 2OB = 4 OB C AB D B A C
y B

O

A

x

B OA B OB = x OC = y y x y y B

O

A

x

B OA B BD OB C y B

O

A

x

7. (2009 )ABCD AD = 6 OA OB x x ? 7 x + 12 = 0 OA > OB
2

1 sin ABC 2 E x S AOE =

16 D E 3

AOE DAO 3 M AB F A C F M F
y A

D

B

O

C

x

28

8(2009 ) B (4 BA x A 2) 1 tan BOA 2 B 90 C C 3 OAB OAB A A B B

(2 2) OAB O A ?
y

B 1 O 1 A x

9. 2009 18 ABC

A1 B1 = ABB1C1 = BC A1 = A A1 B 1C1 A1 B 1C1 ABC
B

A

C


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