I choose S and R but both are wrong, does anyone know the right angle?
2026-03-26 20:36:24.1774557384
Which letter represents the angle?
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The angle $\frac{13\pi}{4}=3\pi+\frac{\pi}{4}$ corresponds to R, since angles are measured counterclockwise around the circle. Then, since the radius in negative, you reflect through the origin. So, the answer is P.