ayudenme con esta tarea por favor
PRIMARY RAINBOW: Combine φ=4r−2i with Snell's Law to express the angle φ as a function of i and n only.
(a) Evaluate φ(i,n) for the following values (give your answers in degrees):
a.1) i=3∘, n=1.35
a.2) i=46∘, n=1.3