Question

1) sin0° * cos180° + tg0° =
2) sin90° : cos0° + cos180° =
3) cos90° + sin90° : cos0° =
4) sin90° + cos0° + cos90° =

Answer 1

Ответ:

1) sin0° * cos180°

2) sin90° : cos0° + cos180° =0

3) cos90° + sin90° : cos0° =1

4)sin90° + cos0° + cos90° =2