Cos 3/5 в градусах !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Question

Cos 3/5 в градусах !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answer 1

П радиан  - 180°

3/5 радиан - х°

                            х°=180°*(3/5):П=108:П≈108:3,14=34,39°

                            cos3/5≈cos34,39°≈0,8252