The distance from the centre of the circle to the common chord of the circles and is |
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a) |
2 |
b) |
4 |
c) |
d) |
The distance from the centre of the circle to the common chord of the circles and is |
|||||||
a) |
2 |
b) |
4 |
c) |
d) |
(a)
Centre of the circle is (1, 0)
Common chord of the other two circles is
Distance from (1, 0) to