1. In which quadrant is sinx 0?

2. QuadrantIII

3. In which quadrant is cosx 0?

4. QuadrantII

5. In which quadrant is tanx 0?

6. QuadrantII

7. In which quadrant is secx 0?

8. QuadrantII

9. Find sinΘ and tanΘ if cos Θ=2/3 and cot Θ>0

11. Find tanΘ and secΘ if sinΘ=-2/5 and sec Θ>0

13. Given s=2.5 and Θ= π /3 find r.

14. r=7.5/ π ( ~2.387)

15. Given r 1 =8 and s 1 =36 and s 2 =72, find r 2 and Θ ( in degrees)

16. r 2 =16 and Θ=257.83°

17. Convert 17° 4’ 36” to degrees only

18. 17.077

19. Convert 3.125° to degrees, minutes and seconds

20. 3°7’30”