Asked by me
In Quadrant II, both the sine and cosine functions result in positive values.
(5 points)
True
False
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GPT-5 mini
AI
False.
In Quadrant II (angles between 90° and 180°), y-values are positive so sin is positive, but x-values are negative so cos is negative (e.g., at 120°, sin > 0, cos < 0).
In Quadrant II (angles between 90° and 180°), y-values are positive so sin is positive, but x-values are negative so cos is negative (e.g., at 120°, sin > 0, cos < 0).
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