Why sin0 = 0 and cos0 = 1 ?

Here i explained why sin0 is 0 and cos0 is 1. Graphical explaination and reason given why it happen this way. The Gud thing about Maths is that you can real its various chapters from one another. I will do thing like this more in future and share on Youtube!

Видео Why sin0 = 0 and cos0 = 1 ? автора Геометрия: от простого к глубокому