Hong Kong Institute of Vocational Education (Tuen Mun)
MATH 1991

Winter 2015
1. (a)
(b)
2. (a)
(b)
3 (a)
(b)
(C)
9 lCEMaths I MS
GA 2.)
Solotions
Median mark = 49.5 1A
m
m
1A+1A 1A for any two
correct, 1A for
Mean mark the rest
= 24.5 x 10 + 34.5 x 10 + 44.2;<20 + 54.5 x 30 + 64.5 x 10 1M Accept25'35etc
Hong Kong Institute of Vocational Education (Tuen Mun)
MATH 1991

Winter 2015
SECTION A (39 MARKS)
Answer ALL questions in this section.
There is no need to start each question on a fresh page.
FORMULAS FOR REFERENCE ' ' 1. In Figure 1, the cumulative
frequency polygon shows the
distribution of the marks of 80
students in a Mathema
Hong Kong Institute of Vocational Education (Tuen Mun)
MATH 1991

Winter 2015
Form 5
HKCEE 1991
Mathematics II
91
1.
(a2a)(3a4a)
A.
B.
C.
D.
E.
91
2.
C.
D.
91
5.
1
1
=
2
1 x
(1 + x) 2
A.
2
(1 x )(1 + x 2 )
m( y 2 1)
.
( y 2 + 1)
E.
3a6a
(3a)6a
3a8a
4a6a
(34a)(a6a)
(1 y 2 )
.
m(1 + y 2 )
( y 2 1)
.
m( y 2 + 1)
1
+
x2
1
+
x
1
y2
=
1
Hong Kong Institute of Vocational Education (Tuen Mun)
MATH 1991

Winter 2015
1991 ()
A
E
46
C
31
16
1.
2.
3.
4.
5. 18 30% sin@
6. ,
1991 HKCEE Mathematics Paper II M.C. Answer
1. A
11. C
21. A
31. C
41. E
51. B
2. E
12. A
22. C
32. E
42. B
52. C
3. A
13. C
23. B
33. D
43. D
53. B
4. E
14. D
24. D
34. D
44. C
54. A
5. E
15. A