St. Stephen’s Girls’ College Form 4 Maths Mid-Year Exam 2021-22

試題答案:

Section A

1. B
2. B
3. A
4. D
5. C
6. D
7. D
8. B
9. C
10. A
11. A
12. C

Section B

13. \(y=\dfrac{x-7a}{5}\)
14. \(\dfrac{1}{x^{4}y^{4}}\)
15. a) (3m – 2n)(2m – 3n)
    b) (3m – 2n)(3 – 2m + 3n)
16. k > 1/6
17. a = 3, b = 5
18. a) f(x) = 0 has 2 distinct real roots.
    b) -6
19. a) x = 4/3 or x = -1/2
    b) w = 1/3 or w = -3/2
20. a) -4
    b) 35
21. a) x – 3y + 3= 0
    b) (3/2, 3/2)
    c) 15/4
    d) 1 : 2
22. a) 1/2
    b) 150°
23. a) p = 4, q = 6
    b) The minimum value of the function is -8
    c) 16

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