德望學校 – S2數學 2A Chapter 3 Algebraic Fractions and Formulas – CQ (11-16)

試卷答案:

1. \(a=\dfrac{y+1}{y-2}\)
2. a) 2(x + 5)(3x – 2)
   b) 2/x
3. \(y=-\dfrac{A}{x}\)
4. \(\dfrac{2-5x}{1-x}\)
5. \(\dfrac{3-a}{a-2}\)
6. a) \(\dfrac{a}{1-a}\)
   b) \(\dfrac{-a}{2(a+1)}\)
7. \(\dfrac{1}{3x+13}\)
8. a) \(y=\dfrac{c}{bx-a}\)
   b) 3/19
9. \(\dfrac{x^{2}+y^{2}}{(x+y)^2}\)
10. 7 – x
11. a) \(\dfrac{1+2m}{6m(m-n)}\)
    b) \(\dfrac{a}{1+a}\)
12. a) \(C = \dfrac{5}{9}(F-32)\)
    b) Chloe has a fever.
13. a) \(\dfrac{3}{x-4}\)
    b) \(x=\dfrac{1}{2y}\)
14. b) \(\dfrac{16+y^{2}}{(y+4)(y-4}\)
15. \(P=\dfrac{h-rt^{2}}{r-h}\)
16. a) \(r=\dfrac{A-p}{p(1+r)}\)
    b) 3/8
17. a) \(-\dfrac{x-2}{x+3} \quad or \quad \dfrac{2-x}{x+3}\)
    b) 1
18. \(\dfrac{x}{x-1}\)

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