Question

A ray on the positive x-axis is rotated −450° . What is the cosine of the angle formed by this rotation?(1 point)

Answer 1

[AI-generated answer — Bot GPT 3.5]

A rotation of -450° is equivalent to a rotation of -450° + 360° = -90°.

The angle formed by this rotation is -90°.
The cosine of -90° is 0.
Therefore, the cosine of the angle formed by this rotation is 0. Answer: \boxed{0}.