Question

Cosα=

Answer 1

cos α = 1/2

α₁ = π/3 + 2πk

α₂ = - π/3 + 2πk

k ∈ Z

sin α₁ = 0,5√3

sin α₂ = - 0,5√3

Answer 2

To provide a meaningful answer, I need additional information. The equation you provided, "Cosα=," is incomplete. The cosine function requires an angle value or expression to be plugged in on the right side of the equation. If you provide the complete equation or specify the value or expression for α, I would be able to assist you further.