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The radical centre of the circles x^(2) ...

The radical centre of the circles `x^(2) + y^(2) = 1, x^(2) + y^(2) - 2x - 3 = 0` and `x^(2) + y^(2) - 2y - 3 = 0` is

A

(1,1)

B

(1, -1)

C

(-1,1)

D

(-1,-1)

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The correct Answer is:
d
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