數學試卷答案 – St. Stephen’s Girls’ College Form 2 Math Final Exam 2020-21 Paper 2

St. Stephen’s Girls’ College Form 2 Math Final Exam 2020-21 – Paper II

試卷答案

1. a) 4
   b) 4
2. a) Yes
   b) No
   c) Yes
3. \(\dfrac{3a^{4}}{b^{2}}\)
4. I, II
5. -6
6. a) \(x^{2}+7xy-6y^{2}\)
   b) \(4x^{2}-4y^{2}\)
7. A = -6
8. a) Yes
   b) Yes
9. s = 4
10. a) \(-\dfrac{a-2}{2}\)
    b) [(\dfrac{8y-9x}{6(x-y)}\)
11. \(a=\dfrac{3+2b}{b-1}\)
12. II, III
13. x = 3
    y = -2
14. $8.2
15. HK$ 20833
16. 200
17. x : y = 32 : 25
18. 5.76km²
19. 15
20. 5 cm
21. I, III
22. 56 cm
23. \(-11\sqrt{7}\)
24. 74°
25. 36°
26. 16
27. 12
28. x = 16.9
    θ = 30°
29. ∠B = 66°
    AB = 88.5 cm
    AC = 80.9 cm
30. 5.62 m²
31. \(\sqrt{2}\)
32. a) 60°
    b) 38°
    c) 10°
33. a) No
    b) Yes
    c) No

St. Stephen’s Girls’ College Form 2 Math Final Exam 2020-21 – Paper II 試卷