Calculation: eDQBJ3 - 1
=
= $$\frac{sin(\alpha)}{sin(\gamma)}$$ = $$\frac{v1}{v2}$$ sin(α) = $$sin(\alpha)$$ = $$\frac{v1\cdot sin(\gamma)}{v2}$$ α = arcsin( )$$\alpha$$ = $$arcsin(\frac{v1\cdot sin(\gamma)}{v2})$$ α = arcsin( )$$\alpha$$ = $$arcsin(\frac{sin(\gamma)\cdot v1}{v2})$$