If a line angles α, β, γ with positive directions of the coordinate axes, then the value of sin2 α + sin2 β + sin2 γ is __________.

If a line angles α, β, γ with positive directions of the coordinate

1.	If a line angles α, β, γ with positive directions of the coordinate axes, then the value of sin2 α + sin2 β + sin2 γ is __________.
Answer» If a line angles α, β, γ with positive directions of the coordinate axes, then the value of sin²α + sin²β + sin² γ is __________.