In the unit circle, what are the (x, y) coordinates for an angle of 270 degrees?
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(0, -1)
At 270 degrees (or 3π/2 radians), the terminal side lies on the negative y-axis. Since the unit circle has a radius of 1, the x-coordinate (cosine) is 0 and the y-coordinate (sine) is -1.
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- What are the (x, y) coordinates for 3π/2 radians on the unit circle?