德望學校 – S3數學 3B Chapter 9 Trigonometric Relations – CQ (16-21)

試卷答案:

1. \(sin\theta=\tfrac{\sqrt{11}}{4}, tan\theta=\tfrac{\sqrt{55}}{5}\)
2. \(\tfrac{\sqrt{3}}{3}\)
3. 3
4. 0.5
5. \(\tfrac{2\sqrt{5}}{9}\)
6. \(\sqrt{3}\)
7. \(\tfrac{2\sqrt{5}}{15}\)
8. a) –
   b) 60°
9. \(\tfrac{\sqrt{6}}{2}\)
10. a) –
    b) –
11. a) 10°
    b) 2
12. 1
13. 40°
14. a) \(cos\theta=\tfrac{\sqrt{7}}{3}, tan\theta=\tfrac{\sqrt{14}}{7}\)
    b) \(\tfrac{2\sqrt{7}}{21}\)
15. a) –
    b) 60°

< 返回 德望學校 – 中三數學考試 試題庫 主頁 >