5) Starting from the expression for the Fresnel reflection coefficient rs, ni cosa n2 cos θ2...
5) Starting from the expression for the Fresnel reflection coefficient rs, ni cosa n2 cos θ2 ni cos θ1 + n2 cos θ2 TS - show that sin(θ2-01) rs-sin(82 + 01) Clearly show all of your steps, and any trigonometric identities you employed