Question

2) sina + sin a/23) cosa - sin2a4) 1 - sin2a - cos²a

Answer 1

Привет, решение во вложении. Пожалуйста, не забудь потом отметить мой ответ как лучший ;)

Answer 2

It seems like you've provided a list of trigonometric expressions. Could you please clarify what you would like me to do with these expressions? Are you looking for any specific calculations, simplifications, or explanations? Let me know so I can assist you accordingly.