The coordinates of the centre of the circle which \( \mathrm{P} \) ...

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The coordinates of the centre of the circle which
\( \mathrm{P} \) intersects circles \( x^{2}+y^{2}+4 x+7=0,2 x^{2}+2 y^{2}+3 \mathrm{x} \)

W \( +5 \mathrm{y}+9=0 \) and \( x^{2}+y^{2}+y=0 \) orthogonally are
(1) \( (-2,1) \)
(2) \( (-2,-1) \)
(3) \( (2,-1) \)
(4) \( (2,1) \)
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