Mathematics

Mathematics

Problem

If the image of the point (−4,5)(-4, 5) in the line x+2y=2x + 2y = 2 lies on the circle (x+4)2+(y−3)2=r2(x + 4)^2 + (y - 3)^2 = r^2 , then rr is equal to : (a) 1 (b) 4 (c) 3 (d) 2

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