cos(π/2 - α) + sin(π - α)
cos(π/2 - α) = sin(α)sin(π - α) = sin(α)
sin(α) + sin(α) = 2sin(α)
Ответ: 2sin(α)
cos(π/2 - α) + sin(π - α)
cos(π/2 - α) = sin(α)
sin(π - α) = sin(α)
sin(α) + sin(α) = 2sin(α)
Ответ: 2sin(α)