1.

The equation of the circle which intersects circles x2+y2+x+2y+3=0,x2+y2+2x+4y+5=0 and x2+y2−7x−8y−9=0 at right angle, will be

Answer»

The equation of the circle which intersects circles x2+y2+x+2y+3=0,x2+y2+2x+4y+5=0 and

x2+y27x8y9=0 at right angle, will be




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