What is the relationship between the angles ∠NOM and ∠NCM as used in the derivation (Figure 9.15)?

Question

Accepted Answer

∠NOM + ∠NCM = i (the angle of incidence)

Answer

∠NOM = ∠NCM

Answer

∠NOM - ∠NCM = i (the angle of incidence)

Answer

∠NOM * ∠NCM = i (the angle of incidence)

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