The expression SIN^2 theta + COS^2 theta over SIN theta is equivalent to?

Question

tell me the answer and why and ill be thankful and ill give 10 points.

Answer 1

Do you mean (sin² θ + cos² θ)/sin θ? If so this is equal to csc θ, since (sin² θ + cos² θ)/sin θ = 1/sin θ = csc θ.