filmov
tv
If `vec(a)` and `vec(B)` are two vectors such that `|vec(a)|=|vec(b)|=sqrt(2)` and `vec(a).vec(b)=-1
![preview_player](https://i.ytimg.com/vi/4zpXlTYgZ68/maxresdefault.jpg)
Показать описание
If `vec(a)` and `vec(B)` are two vectors such that `|vec(a)|=|vec(b)|=sqrt(2)` and `vec(a).vec(b)=-1`, find the angle between `vec(a)` and `vec(b)`.