9512.net

# 湖南省长沙市铁路一中2018_2019学年高二数学上学期期中试题文

2018

()

110

150

12 5 60

1 A5 ( )

A12

B. 11

C. 2

D. 5

2. , , ( )

A.

1 3

B.

1 4

C.12

D.23

3 8 8

A 86 B 87 C 87.5 D 88.5

4

Asin x cosx

B (log2

x)

1 x ln

2

Ccosx sin x

D (1 ) x

1 x2

5. 210 98

A. 7

B. 14

C. 2

D. 49

6. A B

A. AB P(A) 1 P(B) B. ABP(A B) P(A) P(B)

C. AB AB D. ABAB

7. 700 20 200 480

70 ( )

A70

B20

C48

D2

A. (0, 0)

B. (x , 0) C. (0, y)

8. y^ a^ b^x D. (x, y)

9 yx32x1 (10)( )

A yx1 B yx1 C y2x-2 Dy2x2

10. abR"a0b0""a+b0"

A

B

-1-

C

D

11. p 2a 2b a b

A 2a 2b a b B 2a 2b a b

C 2a 2b a b D 2a 2b a b
12. f (x) f x y f (x) y f x

A

B.

C.

D.

4 5 20
13. f (x) 2x4 4x3 3x2 2x 1 x2 _____. 14. " x R, x2 2x 2 0 "________________
15. 0.8 0.5 ______________
16. R f(x) f (x) f (x) 1, f (0) 4 ex f (x) ex 3 e ________________.
6 70 17( 10 ) 5 3 2
1 2.

-2-

18.( 12 ) f (x) x3 x2 1 f (x)
2 f (x) -1, 2
19.( 12 ) p : 1 x 1q :(x a)[x (a 1)] 0, p q 2
a .
20.( 12 ). 1 2 5
-3-

21.( 12 ) 60
40,50, 50, 60,90,100 .
1 260
22.( 12 ) f (x)ax1ln x(aR) (1) f (x) (2) f (x) x1 f(x)bx2 x(0)
b (3) x>y>e1 ex ln(1y) > ey ln(1x)
-4-

-5-

1

23

B

CA

4

5

6

7

8

9

B

B

D

B

D

A

139

14.

x0 R, x02 2x0 2 0

17. 110 18.

2

3 10

150.3

10 11 12

A

B

A

160

19.

012

20.1 1 6

2 1
6

21.10.3 2 75% 71

22.

-6-

All rights reserved Powered by 甜梦文库 9512.net

copyright ©right 2010-2021。