(sin(α/2) + cos(α/2))²
Объяснение:
1+sinα = sin²(α/2) + cos²(α/2) + 2•sin(α/2)•cos(α/2) = (sin(α/2) + cos(α/2))²
(Или (sin(α/2) + cos(α/2))•(sin(α/2) + cos(α/2).
(sin(α/2) + cos(α/2))²
Объяснение:
1+sinα = sin²(α/2) + cos²(α/2) + 2•sin(α/2)•cos(α/2) = (sin(α/2) + cos(α/2))²
(Или (sin(α/2) + cos(α/2))•(sin(α/2) + cos(α/2).