1.

If the circle x2+y2+6x−2y+k=0 bisects the circumference of the circle x2+y2+2x−6y−15=0, then k _______

Answer»

If the circle x2+y2+6x2y+k=0 bisects the circumference of the circle x2+y2+2x6y15=0, then k _______




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