\(cos\alpha cos\beta =cos(\alpha -\beta )-sin\alpha sin\beta\) \(cos\alpha cos\beta =sin\alpha sin\beta -cos(\alpha -\beta )\) \(cos\alpha cos\beta =cos(\alpha +\beta )-sin\alpha sin\beta\) \(cos\alpha cos\beta =cos(\alpha -\beta )+sin\alpha sin\beta\)

Задание

Выберите верное утверждение.

\(cos\alpha cos\beta =cos(\alpha -\beta )-sin\alpha sin\beta\)
\(cos\alpha cos\beta =sin\alpha sin\beta -cos(\alpha -\beta )\)
\(cos\alpha cos\beta =cos(\alpha +\beta )-sin\alpha sin\beta\)
\(cos\alpha cos\beta =cos(\alpha -\beta )+sin\alpha sin\beta\)