2018

2019

12

5

60

1.C 234,,,=,1,,1,1,A i i i i i i B i 1,,A B i C.

2.A 02sin 1sin 10202sin 1

A 3.D

1x y

4.D

a

b

0m D 5A sin cos 3161sin 297sin 29

A 6.C X a

41,a C 7.B

1013()10,22x x e x dx

e x e B 8B A //,//,m n m n A B C m

m n n //n C D //m m n //n n n D B 9A 32221132253260.6,5210P A 10B 3()

3f x x x '2()33,f x x '2

()330,1f m m m 1m B 11C 12)2262V C

12.D 2224c

a b 2c (2,0)F 2x 2213y x (2,3)P ||3PF A (1,3)A PF 1APF 3(21)

D

13.9090

14.i 121i

i z i

i

5,5y x 1111y x 29

9y

41x 299y

16.1y x (1,0)k 213121

x k 1y x 7017-21

23

17.1n a 0,0n a q 3

2,a a a 223434,

a a a q 2 3q n a 133113422 6n n n n n a a q a q 21n a 12,n n a n a 11,2

a q n a n

2 1 12

1n n S

BC D DF

ABC EFG

//ABC EFG

//BC FG

2CB GF //CD GF CDFG //CG DF BF CF D BC DF BC CG BC

ABC BCGF

BC CG BCGF

CG ABC AB ABC CG AB

ABC EFG 2CB GF 2AC EG 2ACG AEG S S 11G ABE B AEG B ACG G ABC V V CG ABC

ABC

2BC 1GF

BCGF

CG 1111

G ABE G ABC ABC V S CG

255651351456556521351454

659

265265=1220.32(),,f x x ax bx m a b m R

'2()

32,,f x x ax b a b R 1()f x 1x 2x '1320 f a b '21240 f a b

9, 6.

2a b 5219, 6.2a b ()f x '2()396=321f x x x x

x

10f x

1x 2x 122,3x x f x 2,3813=45++

2f m 2,1f f

122,3x x 12m f x f x 122m f x f x 3188,176.2

m f f m 12

21.(1)2c c

3c

e a

2221b a c 3

M

21

y 5

(2)

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1

m y y

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246330

x mx m 22234(33)

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m 7

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12|||

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10

2

m ||AB ||AB 12

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1

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21,123,

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x f x x x x

2

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x

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tan

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l

y kx l O

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(,)44

5

(2)l cos ,(

sin

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A B P A t B

t P

t P

t A

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P P x t y

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