2. Sine
Tan
Cos

11. Summary:

12. 1 2 3 4 5

13. 2 3 4 5

14. 3 4 5

15. 4 5

16. 5

17. Textbook Practice Questions – p.456 (Standard book)

20. Solve the equation sinӨ=0.7
Use the symmetric property:
sin(180-Ө) = sin Ө
(finds one more solution)
Then use the periodic property:
sin(Ө±360) = sin Ө
(finds the other solutions in the period)

21. Solve the equation sinӨ=0.7
Use the symmetric property:
sin(180-Ө) = sin Ө
(finds one more solution)
Then use the periodic property:
sin(Ө±360) = sin Ө
(finds the other solutions in the period)