1. Bisects the circumference of every member
2. Orthogonal to every circle belongs to the system
3. Is bisected by the radical axis
4. Belongs to the coaxal system
Orthogonal to every circle belongs to the system
1. x2 + y2 +2x-2y-47=0
2. x2 + y2 - 2x+2y-49=0
3. x2 + y2 - 2x+2y+47=0
4. x2 + y2 - 2x+2y-47=0
x2 + y2 - 2x+2y-47=0
1. 18
2. 13
3. 73/4
4. 57/4
73/4
1. x2+y2=ab/(a2+b2)(ax+by)
2. x2+y2=2ab/(a2+b2)(ax-by)
3. (a2+b2)(x2+y2)=2ab(ax+by)
4. (a2+b2)(x2+y2)=2ab(bx+ay)
(a2+b2)(x2+y2)=2ab(bx+ay)
1. x2 + y2 - 4x-4y+4=0
2. x2 + y2 - 2x-2y=0
3. x2 + y2 - 2x-2y+1=0
4. x2 + y2 - 4x-4y=0
x2 + y2 - 2x-2y+1=0
1. 4
2. 3
3. 2
4. 1
2
1. 5
2. 4
3. 10
4. 2√5
10
1. (3/2, 27/2)
2. (27/2, 3/2)
3. (27, 3)
4. (1, 2/3)
(27/2, 3/2)
1. (-1, 1)
2. (7, -5)
3. (0, -6)
4. (0, 2)
(7, -5)
1. √2
2. 2
3. 4
4. ½
2