4. Sine and cosine Jaa Sulje 2/19. Exercise 19.11 Avaa lomake 2/19. Exercise 19.12 Avaa lomake 2/19. Exercise 19.13 Avaa lomake 2/19. Exercise 19.14 Avaa lomake 2/19. Exercise 19.15 Avaa lomake 2/19. Exercise 19.16 Avaa lomake 2/19. Exercise 19.17 Avaa lomake
