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51.CIRCLES Single correct Let C be a circle x² + y² = 1. The line L intersects C at point (-1,0) and the point P. Suppose that the slope of line L is a rational number m. Number of choices of m for which both the coordinates of P are rational is A. 3 B. 4 C. 5 D. Infinitely many

Answer» 51.CIRCLES Single correct Let C be a circle x² + y² = 1. The line L intersects C at point (-1,0) and the point P. Suppose that the slope of line L is a rational number m. Number of choices of m for which both the coordinates of P are rational is A. 3 B. 4 C. 5 D. Infinitely many


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