In a triangle \( P Q R \), the co-ordinates of the point \( P \) and \( Q \) are \( (-2,4) \) an...

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In a triangle \( P Q R \), the co-ordinates of the point \( P \) and \( Q \) are \( (-2,4) \) and \( (4,-2) \) respectively. If the equation of th perpendicular bisector \( P R \) is \( 2 x-y+2=0 \), then the centre of the circumcircle of the \( P Q R \) is
(a) \( (-1,0) \)
(b) \( (-2,-2) \)
\( (c)(0,2) \)
(d) \( (1,4) \)
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