Cevaplar

2012-12-29T22:31:13+02:00

k)^2 = r^2

x^2+y^2+2x-2y-14=0

=> x^2 + 2x + 1 + y^2 - 2y + 1 = 16

=> (x + 1)^2 + (y - 1)^2 = 4^2

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