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

Answer 2

1) sin0° * cos180° is equal to 0, and tg0° (tangent of 0°) is also equal to 0. Therefore, the expression simplifies to 0 + 0 = 0.

2) sin90° is equal to 1, and cos0° is equal to 1 as well. Therefore, sin90° : cos0° simplifies to 1. Additionally, cos180° is equal to -1, so the expression becomes 1 + (-1) = 0.

3) cos90° is equal to 0, and sin90° is equal to 1. Also, cos0° is equal to 1. Therefore, sin90° : cos0° + cos180° becomes 1 : 1 + (-1), which simplifies to 1.

4) sin90° is equal to 1, cos0° is equal to 1, and cos90° is equal to 0. Therefore, the expression simplifies to 1 + 1 + 0 = 2.