are omega and n both unit vectors?
Yes. as they all have the same length, from the Parallelogram Law of vector addition, we have ωo+ωi=2cos(θ)n\omega_o + \omega_i = 2 \cos(\theta) nωo+ωi=2cos(θ)n
are omega and n both unit vectors?
Yes. as they all have the same length, from the Parallelogram Law of vector addition, we have ωo+ωi=2cos(θ)n