Question

What is the domain of y=sin(θ)? Justify your reasoning, please.

(Also if you could explain it and your reasoning to me like how you found or knew the domain, and your thinking because I don't understand the law of sines and the sine calculator yet. Thank you!)

Answer 1

All Real Numbers

Explanation:

The graph of y=sin (θ) is like a wave that forever oscillates between -1 and 1, in a shape that repeats itself every 2π units. Specifically, this means that the domain of sin (θ) is all real numbers, and the range is [-1,1].

See graph below.