中二數學問題求幫忙(15點)

Question

Trigonometric Ratio

(use calculation, corr to 3 sig. fig)

1.sin17.8

2.tan58.4

3.cos37-sin24.5*tan17.2

4.√sin608tan60+2(cos60)^2

find the value of Θ

5.cosΘ=0.57

6.sinΘ=0.97

7.tanΘ=0.29

8.2cosΘ=1.5

9.3-tanΘ=0.53

10.5sinΘ=2.3

Answer 1

最愛解答

1. 0.306

2. 1.63

3. 0.670

4. if √(sin60.8tan60)+2(cos60)^2 = 1.73

if √(sin60.8)*tan60+2(cos60)^2 = 2.12

5. 55.2

6. 75.9

7. 16.2

8. 41.4

9. 68.0

10. 27.4

資料來源： 其實真係禁計數機ja wor