The unit circle below shows 100∘ and -100∘. Find the values below, rounded to three decimal places if necessary.

Answer:
sin(100°) = 0.985
sin(-100°) = -0.985
Step-by-step explanation:
In a unit circle, each point (x, y) on the circumference corresponds to the coordinates (cos θ, sin θ), where θ represents the angle formed between the positive x-axis and the line segment connecting the origin to the point (x, y).
Therefore, sin(100°) equals the y-coordinate of the point (-0.174, 0.985), so:
[tex]\boxed{\sin(100^{\circ}) = 0.985}[/tex]
Similarly, sin(-100°) equals the y-coordinate of the point (-0.174, -0.985), so:
[tex]\boxed{\sin(-100^{\circ}) = -0.985}[/tex]